* [PATCH 01/52] perf c2c: Introduce c2c_decode_stats function
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
@ 2016-10-20 15:03 ` Arnaldo Carvalho de Melo
2016-10-20 15:03 ` [PATCH 02/52] perf c2c: Introduce c2c_add_stats function Arnaldo Carvalho de Melo
` (52 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:03 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Introducing c2c_decode_stats function, which decodes
data_src data into new struct c2c_stats.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Original-patch-by: Dick Fowles <rfowles@redhat.com>
Original-patch-by: Don Zickus <dzickus@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1474558645-19956-3-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/mem-events.c | 98 ++++++++++++++++++++++++++++++++++++++++++++
tools/perf/util/mem-events.h | 36 ++++++++++++++++
2 files changed, 134 insertions(+)
diff --git a/tools/perf/util/mem-events.c b/tools/perf/util/mem-events.c
index bbc368e7d1e4..502fcee91973 100644
--- a/tools/perf/util/mem-events.c
+++ b/tools/perf/util/mem-events.c
@@ -9,6 +9,7 @@
#include "mem-events.h"
#include "debug.h"
#include "symbol.h"
+#include "sort.h"
unsigned int perf_mem_events__loads_ldlat = 30;
@@ -268,3 +269,100 @@ int perf_script__meminfo_scnprintf(char *out, size_t sz, struct mem_info *mem_in
return i;
}
+
+int c2c_decode_stats(struct c2c_stats *stats, struct mem_info *mi)
+{
+ union perf_mem_data_src *data_src = &mi->data_src;
+ u64 daddr = mi->daddr.addr;
+ u64 op = data_src->mem_op;
+ u64 lvl = data_src->mem_lvl;
+ u64 snoop = data_src->mem_snoop;
+ u64 lock = data_src->mem_lock;
+ int err = 0;
+
+#define P(a, b) PERF_MEM_##a##_##b
+
+ stats->nr_entries++;
+
+ if (lock & P(LOCK, LOCKED)) stats->locks++;
+
+ if (op & P(OP, LOAD)) {
+ /* load */
+ stats->load++;
+
+ if (!daddr) {
+ stats->ld_noadrs++;
+ return -1;
+ }
+
+ if (lvl & P(LVL, HIT)) {
+ if (lvl & P(LVL, UNC)) stats->ld_uncache++;
+ if (lvl & P(LVL, IO)) stats->ld_io++;
+ if (lvl & P(LVL, LFB)) stats->ld_fbhit++;
+ if (lvl & P(LVL, L1 )) stats->ld_l1hit++;
+ if (lvl & P(LVL, L2 )) stats->ld_l2hit++;
+ if (lvl & P(LVL, L3 )) {
+ if (snoop & P(SNOOP, HITM))
+ stats->lcl_hitm++;
+ else
+ stats->ld_llchit++;
+ }
+
+ if (lvl & P(LVL, LOC_RAM)) {
+ stats->lcl_dram++;
+ if (snoop & P(SNOOP, HIT))
+ stats->ld_shared++;
+ else
+ stats->ld_excl++;
+ }
+
+ if ((lvl & P(LVL, REM_RAM1)) ||
+ (lvl & P(LVL, REM_RAM2))) {
+ stats->rmt_dram++;
+ if (snoop & P(SNOOP, HIT))
+ stats->ld_shared++;
+ else
+ stats->ld_excl++;
+ }
+ }
+
+ if ((lvl & P(LVL, REM_CCE1)) ||
+ (lvl & P(LVL, REM_CCE2))) {
+ if (snoop & P(SNOOP, HIT))
+ stats->rmt_hit++;
+ else if (snoop & P(SNOOP, HITM))
+ stats->rmt_hitm++;
+ }
+
+ if ((lvl & P(LVL, MISS)))
+ stats->ld_miss++;
+
+ } else if (op & P(OP, STORE)) {
+ /* store */
+ stats->store++;
+
+ if (!daddr) {
+ stats->st_noadrs++;
+ return -1;
+ }
+
+ if (lvl & P(LVL, HIT)) {
+ if (lvl & P(LVL, UNC)) stats->st_uncache++;
+ if (lvl & P(LVL, L1 )) stats->st_l1hit++;
+ }
+ if (lvl & P(LVL, MISS))
+ if (lvl & P(LVL, L1)) stats->st_l1miss++;
+ } else {
+ /* unparsable data_src? */
+ stats->noparse++;
+ return -1;
+ }
+
+ if (!mi->daddr.map || !mi->iaddr.map) {
+ stats->nomap++;
+ return -1;
+ }
+
+#undef P
+ return err;
+}
diff --git a/tools/perf/util/mem-events.h b/tools/perf/util/mem-events.h
index 7f69bf9d789d..e111a2a2b18f 100644
--- a/tools/perf/util/mem-events.h
+++ b/tools/perf/util/mem-events.h
@@ -2,6 +2,10 @@
#define __PERF_MEM_EVENTS_H
#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <linux/types.h>
+#include "stat.h"
struct perf_mem_event {
bool record;
@@ -33,4 +37,36 @@ int perf_mem__lck_scnprintf(char *out, size_t sz, struct mem_info *mem_info);
int perf_script__meminfo_scnprintf(char *bf, size_t size, struct mem_info *mem_info);
+struct c2c_stats {
+ u32 nr_entries;
+
+ u32 locks; /* count of 'lock' transactions */
+ u32 store; /* count of all stores in trace */
+ u32 st_uncache; /* stores to uncacheable address */
+ u32 st_noadrs; /* cacheable store with no address */
+ u32 st_l1hit; /* count of stores that hit L1D */
+ u32 st_l1miss; /* count of stores that miss L1D */
+ u32 load; /* count of all loads in trace */
+ u32 ld_excl; /* exclusive loads, rmt/lcl DRAM - snp none/miss */
+ u32 ld_shared; /* shared loads, rmt/lcl DRAM - snp hit */
+ u32 ld_uncache; /* loads to uncacheable address */
+ u32 ld_io; /* loads to io address */
+ u32 ld_miss; /* loads miss */
+ u32 ld_noadrs; /* cacheable load with no address */
+ u32 ld_fbhit; /* count of loads hitting Fill Buffer */
+ u32 ld_l1hit; /* count of loads that hit L1D */
+ u32 ld_l2hit; /* count of loads that hit L2D */
+ u32 ld_llchit; /* count of loads that hit LLC */
+ u32 lcl_hitm; /* count of loads with local HITM */
+ u32 rmt_hitm; /* count of loads with remote HITM */
+ u32 rmt_hit; /* count of loads with remote hit clean; */
+ u32 lcl_dram; /* count of loads miss to local DRAM */
+ u32 rmt_dram; /* count of loads miss to remote DRAM */
+ u32 nomap; /* count of load/stores with no phys adrs */
+ u32 noparse; /* count of unparsable data sources */
+};
+
+struct hist_entry;
+int c2c_decode_stats(struct c2c_stats *stats, struct mem_info *mi);
+
#endif /* __PERF_MEM_EVENTS_H */
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 02/52] perf c2c: Introduce c2c_add_stats function
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
2016-10-20 15:03 ` [PATCH 01/52] perf c2c: Introduce c2c_decode_stats function Arnaldo Carvalho de Melo
@ 2016-10-20 15:03 ` Arnaldo Carvalho de Melo
2016-10-20 15:03 ` [PATCH 03/52] perf c2c: Add c2c command Arnaldo Carvalho de Melo
` (51 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:03 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Introducing c2c_add_stats function helper to cumulate c2c_stats.
Original-patch-by: Dick Fowles <rfowles@redhat.com>
Original-patch-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1474558645-19956-4-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/mem-events.c | 30 ++++++++++++++++++++++++++++++
tools/perf/util/mem-events.h | 1 +
2 files changed, 31 insertions(+)
diff --git a/tools/perf/util/mem-events.c b/tools/perf/util/mem-events.c
index 502fcee91973..e50773286ef6 100644
--- a/tools/perf/util/mem-events.c
+++ b/tools/perf/util/mem-events.c
@@ -366,3 +366,33 @@ int c2c_decode_stats(struct c2c_stats *stats, struct mem_info *mi)
#undef P
return err;
}
+
+void c2c_add_stats(struct c2c_stats *stats, struct c2c_stats *add)
+{
+ stats->nr_entries += add->nr_entries;
+
+ stats->locks += add->locks;
+ stats->store += add->store;
+ stats->st_uncache += add->st_uncache;
+ stats->st_noadrs += add->st_noadrs;
+ stats->st_l1hit += add->st_l1hit;
+ stats->st_l1miss += add->st_l1miss;
+ stats->load += add->load;
+ stats->ld_excl += add->ld_excl;
+ stats->ld_shared += add->ld_shared;
+ stats->ld_uncache += add->ld_uncache;
+ stats->ld_io += add->ld_io;
+ stats->ld_miss += add->ld_miss;
+ stats->ld_noadrs += add->ld_noadrs;
+ stats->ld_fbhit += add->ld_fbhit;
+ stats->ld_l1hit += add->ld_l1hit;
+ stats->ld_l2hit += add->ld_l2hit;
+ stats->ld_llchit += add->ld_llchit;
+ stats->lcl_hitm += add->lcl_hitm;
+ stats->rmt_hitm += add->rmt_hitm;
+ stats->rmt_hit += add->rmt_hit;
+ stats->lcl_dram += add->lcl_dram;
+ stats->rmt_dram += add->rmt_dram;
+ stats->nomap += add->nomap;
+ stats->noparse += add->noparse;
+}
diff --git a/tools/perf/util/mem-events.h b/tools/perf/util/mem-events.h
index e111a2a2b18f..faf80403b519 100644
--- a/tools/perf/util/mem-events.h
+++ b/tools/perf/util/mem-events.h
@@ -68,5 +68,6 @@ struct c2c_stats {
struct hist_entry;
int c2c_decode_stats(struct c2c_stats *stats, struct mem_info *mi);
+void c2c_add_stats(struct c2c_stats *stats, struct c2c_stats *add);
#endif /* __PERF_MEM_EVENTS_H */
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 03/52] perf c2c: Add c2c command
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
2016-10-20 15:03 ` [PATCH 01/52] perf c2c: Introduce c2c_decode_stats function Arnaldo Carvalho de Melo
2016-10-20 15:03 ` [PATCH 02/52] perf c2c: Introduce c2c_add_stats function Arnaldo Carvalho de Melo
@ 2016-10-20 15:03 ` Arnaldo Carvalho de Melo
2016-10-20 15:03 ` [PATCH 04/52] perf c2c: Add record subcommand Arnaldo Carvalho de Melo
` (50 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:03 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Adding c2c command base wirings. Its implementation is going to be added
gradually in following patches.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1474558645-19956-11-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/Build | 1 +
tools/perf/builtin-c2c.c | 23 +++++++++++++++++++++++
tools/perf/builtin.h | 1 +
tools/perf/perf.c | 1 +
4 files changed, 26 insertions(+)
create mode 100644 tools/perf/builtin-c2c.c
diff --git a/tools/perf/Build b/tools/perf/Build
index a43fae7f439a..b12d5d1666e3 100644
--- a/tools/perf/Build
+++ b/tools/perf/Build
@@ -21,6 +21,7 @@ perf-y += builtin-inject.o
perf-y += builtin-mem.o
perf-y += builtin-data.o
perf-y += builtin-version.o
+perf-y += builtin-c2c.o
perf-$(CONFIG_AUDIT) += builtin-trace.o
perf-$(CONFIG_LIBELF) += builtin-probe.o
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
new file mode 100644
index 000000000000..8252ed0ba5d0
--- /dev/null
+++ b/tools/perf/builtin-c2c.c
@@ -0,0 +1,23 @@
+#include <linux/compiler.h>
+#include <linux/kernel.h>
+#include "util.h"
+#include "debug.h"
+#include "builtin.h"
+#include <subcmd/parse-options.h>
+
+static const char * const c2c_usage[] = {
+ "perf c2c",
+ NULL
+};
+
+int cmd_c2c(int argc, const char **argv, const char *prefix __maybe_unused)
+{
+ const struct option c2c_options[] = {
+ OPT_INCR('v', "verbose", &verbose, "be more verbose"),
+ OPT_END()
+ };
+
+ argc = parse_options(argc, argv, c2c_options, c2c_usage,
+ PARSE_OPT_STOP_AT_NON_OPTION);
+ return 0;
+}
diff --git a/tools/perf/builtin.h b/tools/perf/builtin.h
index 41c24010ab43..0bcf68e98ccc 100644
--- a/tools/perf/builtin.h
+++ b/tools/perf/builtin.h
@@ -18,6 +18,7 @@ int cmd_bench(int argc, const char **argv, const char *prefix);
int cmd_buildid_cache(int argc, const char **argv, const char *prefix);
int cmd_buildid_list(int argc, const char **argv, const char *prefix);
int cmd_config(int argc, const char **argv, const char *prefix);
+int cmd_c2c(int argc, const char **argv, const char *prefix);
int cmd_diff(int argc, const char **argv, const char *prefix);
int cmd_evlist(int argc, const char **argv, const char *prefix);
int cmd_help(int argc, const char **argv, const char *prefix);
diff --git a/tools/perf/perf.c b/tools/perf/perf.c
index 64c06961bfe4..aa23b3347d6b 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -43,6 +43,7 @@ static struct cmd_struct commands[] = {
{ "buildid-cache", cmd_buildid_cache, 0 },
{ "buildid-list", cmd_buildid_list, 0 },
{ "config", cmd_config, 0 },
+ { "c2c", cmd_c2c, 0 },
{ "diff", cmd_diff, 0 },
{ "evlist", cmd_evlist, 0 },
{ "help", cmd_help, 0 },
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 04/52] perf c2c: Add record subcommand
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (2 preceding siblings ...)
2016-10-20 15:03 ` [PATCH 03/52] perf c2c: Add c2c command Arnaldo Carvalho de Melo
@ 2016-10-20 15:03 ` Arnaldo Carvalho de Melo
2016-10-20 15:03 ` [PATCH 05/52] perf c2c: Add report subcommand Arnaldo Carvalho de Melo
` (49 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:03 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Adding c2c record subcommand. It setups options related to HITM
cacheline analysis and calls standard perf record command.
$ sudo perf c2c record -v -- -a
calling: record -W -d --sample-cpu -e cpu/mem-loads,ldlat=30/P -e cpu/mem-stores/P -a
...
It produces perf.data, which is to be reported by perf c2c report, that
comes in following patches.
Details are described in the man page, which is added in one of the
following patches.
Committer notes:
Testing it:
# perf c2c record -a sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 5.050 MB perf.data (412 samples) ]
# ls -la perf.data
-rw-------. 1 root root 5301752 Oct 4 13:32 perf.data
# perf evlist
cpu/mem-loads,ldlat=30/P
cpu/mem-stores/P
# perf evlist -v
cpu/mem-loads,ldlat=30/P: type: 4, size: 112, config: 0x1cd, { sample_period, sample_freq }: 4000, sample_type: IP|TID|TIME|ADDR|ID|CPU|PERIOD|DATA_SRC|WEIGHT, read_format: ID, disabled: 1, inherit: 1, mmap: 1, comm: 1, freq: 1, task: 1, precise_ip: 3, mmap_data: 1, sample_id_all: 1, mmap2: 1, comm_exec: 1, { bp_addr, config1 }: 0x1f
cpu/mem-stores/P: type: 4, size: 112, config: 0x82d0, { sample_period, sample_freq }: 4000, sample_type: IP|TID|TIME|ADDR|ID|CPU|PERIOD|DATA_SRC|WEIGHT, read_format: ID, disabled: 1, inherit: 1, freq: 1, precise_ip: 3, sample_id_all: 1
#
# perf report --stdio
<SNIP>
# Total Lost Samples: 14
# Samples: 216 of event 'cpu/mem-loads,ldlat=30/P'
# Event count (approx.): 15207
# Overhead Symbol Shared Object
# ........ ..................................... ............................
10.32% [k] update_blocked_averages [kernel.vmlinux]
3.43% [.] 0x00000000001a2122 qemu-system-x86_64 (deleted)
2.52% [k] enqueue_entity [kernel.vmlinux]
1.88% [.] g_main_context_query libglib-2.0.so.0.4800.2
1.86% [k] __schedule [kernel.vmlinux]
<SNIP>
# Samples: 196 of event 'cpu/mem-stores/P'
# Event count (approx.): 14771346
# Overhead Symbol Shared Object
# ........ ................................... ............................
13.91% [k] intel_idle [kernel.vmlinux]
3.02% [.] 0x00000000022f06ea chrome
2.94% [.] 0x00000000001a1b4c qemu-system-x86_64 (deleted)
2.94% [.] 0x000000000019d8e4 qemu-system-x86_64 (deleted)
2.38% [.] 0x00000000001a1c52 qemu-system-x86_64 (deleted)
<SNIP>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1474558645-19956-12-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 114 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 114 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 8252ed0ba5d0..58924c67f818 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -4,12 +4,116 @@
#include "debug.h"
#include "builtin.h"
#include <subcmd/parse-options.h>
+#include "mem-events.h"
static const char * const c2c_usage[] = {
"perf c2c",
NULL
};
+static int parse_record_events(const struct option *opt __maybe_unused,
+ const char *str, int unset __maybe_unused)
+{
+ bool *event_set = (bool *) opt->value;
+
+ *event_set = true;
+ return perf_mem_events__parse(str);
+}
+
+
+static const char * const __usage_record[] = {
+ "perf c2c record [<options>] [<command>]",
+ "perf c2c record [<options>] -- <command> [<options>]",
+ NULL
+};
+
+static const char * const *record_mem_usage = __usage_record;
+
+static int perf_c2c__record(int argc, const char **argv)
+{
+ int rec_argc, i = 0, j;
+ const char **rec_argv;
+ int ret;
+ bool all_user = false, all_kernel = false;
+ bool event_set = false;
+ struct option options[] = {
+ OPT_CALLBACK('e', "event", &event_set, "event",
+ "event selector. Use 'perf mem record -e list' to list available events",
+ parse_record_events),
+ OPT_INCR('v', "verbose", &verbose,
+ "be more verbose (show counter open errors, etc)"),
+ OPT_BOOLEAN('u', "all-user", &all_user, "collect only user level data"),
+ OPT_BOOLEAN('k', "all-kernel", &all_kernel, "collect only kernel level data"),
+ OPT_UINTEGER('l', "ldlat", &perf_mem_events__loads_ldlat, "setup mem-loads latency"),
+ OPT_END()
+ };
+
+ if (perf_mem_events__init()) {
+ pr_err("failed: memory events not supported\n");
+ return -1;
+ }
+
+ argc = parse_options(argc, argv, options, record_mem_usage,
+ PARSE_OPT_KEEP_UNKNOWN);
+
+ rec_argc = argc + 10; /* max number of arguments */
+ rec_argv = calloc(rec_argc + 1, sizeof(char *));
+ if (!rec_argv)
+ return -1;
+
+ rec_argv[i++] = "record";
+
+ if (!event_set) {
+ perf_mem_events[PERF_MEM_EVENTS__LOAD].record = true;
+ perf_mem_events[PERF_MEM_EVENTS__STORE].record = true;
+ }
+
+ if (perf_mem_events[PERF_MEM_EVENTS__LOAD].record)
+ rec_argv[i++] = "-W";
+
+ rec_argv[i++] = "-d";
+ rec_argv[i++] = "--sample-cpu";
+
+ for (j = 0; j < PERF_MEM_EVENTS__MAX; j++) {
+ if (!perf_mem_events[j].record)
+ continue;
+
+ if (!perf_mem_events[j].supported) {
+ pr_err("failed: event '%s' not supported\n",
+ perf_mem_events[j].name);
+ return -1;
+ }
+
+ rec_argv[i++] = "-e";
+ rec_argv[i++] = perf_mem_events__name(j);
+ };
+
+ if (all_user)
+ rec_argv[i++] = "--all-user";
+
+ if (all_kernel)
+ rec_argv[i++] = "--all-kernel";
+
+ for (j = 0; j < argc; j++, i++)
+ rec_argv[i] = argv[j];
+
+ if (verbose > 0) {
+ pr_debug("calling: ");
+
+ j = 0;
+
+ while (rec_argv[j]) {
+ pr_debug("%s ", rec_argv[j]);
+ j++;
+ }
+ pr_debug("\n");
+ }
+
+ ret = cmd_record(i, rec_argv, NULL);
+ free(rec_argv);
+ return ret;
+}
+
int cmd_c2c(int argc, const char **argv, const char *prefix __maybe_unused)
{
const struct option c2c_options[] = {
@@ -19,5 +123,15 @@ int cmd_c2c(int argc, const char **argv, const char *prefix __maybe_unused)
argc = parse_options(argc, argv, c2c_options, c2c_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
+
+ if (!argc)
+ usage_with_options(c2c_usage, c2c_options);
+
+ if (!strncmp(argv[0], "rec", 3)) {
+ return perf_c2c__record(argc, argv);
+ } else {
+ usage_with_options(c2c_usage, c2c_options);
+ }
+
return 0;
}
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 05/52] perf c2c: Add report subcommand
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (3 preceding siblings ...)
2016-10-20 15:03 ` [PATCH 04/52] perf c2c: Add record subcommand Arnaldo Carvalho de Melo
@ 2016-10-20 15:03 ` Arnaldo Carvalho de Melo
2016-10-20 15:03 ` [PATCH 06/52] perf c2c report: Add dimension support Arnaldo Carvalho de Melo
` (48 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:03 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Adding c2c report subcommand. It reads the perf.data and displays shared
data analysis.
This patch adds report basic wirings. It gets fully implemented in
following patches.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1474558645-19956-13-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 66 +++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 65 insertions(+), 1 deletion(-)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 58924c67f818..3fac3a294bdd 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -5,12 +5,74 @@
#include "builtin.h"
#include <subcmd/parse-options.h>
#include "mem-events.h"
+#include "session.h"
+#include "hist.h"
+#include "tool.h"
+#include "data.h"
+
+struct perf_c2c {
+ struct perf_tool tool;
+};
+
+static struct perf_c2c c2c;
static const char * const c2c_usage[] = {
- "perf c2c",
+ "perf c2c {record|report}",
NULL
};
+static const char * const __usage_report[] = {
+ "perf c2c report",
+ NULL
+};
+
+static const char * const *report_c2c_usage = __usage_report;
+
+static int perf_c2c__report(int argc, const char **argv)
+{
+ struct perf_session *session;
+ struct perf_data_file file = {
+ .mode = PERF_DATA_MODE_READ,
+ };
+ const struct option c2c_options[] = {
+ OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
+ "file", "vmlinux pathname"),
+ OPT_INCR('v', "verbose", &verbose,
+ "be more verbose (show counter open errors, etc)"),
+ OPT_STRING('i', "input", &input_name, "file",
+ "the input file to process"),
+ OPT_END()
+ };
+ int err = 0;
+
+ argc = parse_options(argc, argv, c2c_options, report_c2c_usage,
+ PARSE_OPT_STOP_AT_NON_OPTION);
+ if (!argc)
+ usage_with_options(report_c2c_usage, c2c_options);
+
+ file.path = input_name;
+
+ session = perf_session__new(&file, 0, &c2c.tool);
+ if (session == NULL) {
+ pr_debug("No memory for session\n");
+ goto out;
+ }
+
+ if (symbol__init(&session->header.env) < 0)
+ goto out_session;
+
+ /* No pipe support at the moment. */
+ if (perf_data_file__is_pipe(session->file)) {
+ pr_debug("No pipe support at the moment.\n");
+ goto out_session;
+ }
+
+out_session:
+ perf_session__delete(session);
+out:
+ return err;
+}
+
static int parse_record_events(const struct option *opt __maybe_unused,
const char *str, int unset __maybe_unused)
{
@@ -129,6 +191,8 @@ int cmd_c2c(int argc, const char **argv, const char *prefix __maybe_unused)
if (!strncmp(argv[0], "rec", 3)) {
return perf_c2c__record(argc, argv);
+ } else if (!strncmp(argv[0], "rep", 3)) {
+ return perf_c2c__report(argc, argv);
} else {
usage_with_options(c2c_usage, c2c_options);
}
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 06/52] perf c2c report: Add dimension support
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (4 preceding siblings ...)
2016-10-20 15:03 ` [PATCH 05/52] perf c2c: Add report subcommand Arnaldo Carvalho de Melo
@ 2016-10-20 15:03 ` Arnaldo Carvalho de Melo
2016-10-20 15:03 ` [PATCH 07/52] perf c2c report: Add sort_entry " Arnaldo Carvalho de Melo
` (47 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:03 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Adding bare bones of dimension support for c2c report.
Main interface functions are:
c2c_hists__init
c2c_hists__reinit
which re/initialize 'struct c2c_hists' object with sort/display entries
string, in a similar way that setup_sorting function does.
We overload the dimension to provide multi line header support for
sort/display entries.
Also we overload base 'struct perf_hpp_fmt' object with 'struct c2c_fmt'
to define c2c specific functions to deal with multi line headers and
spans.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1474558645-19956-14-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 239 ++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 238 insertions(+), 1 deletion(-)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 3fac3a294bdd..63c0e2d8d2d8 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -10,8 +10,14 @@
#include "tool.h"
#include "data.h"
+struct c2c_hists {
+ struct hists hists;
+ struct perf_hpp_list list;
+};
+
struct perf_c2c {
- struct perf_tool tool;
+ struct perf_tool tool;
+ struct c2c_hists hists;
};
static struct perf_c2c c2c;
@@ -28,6 +34,231 @@ static const char * const __usage_report[] = {
static const char * const *report_c2c_usage = __usage_report;
+#define C2C_HEADER_MAX 2
+
+struct c2c_header {
+ struct {
+ const char *text;
+ int span;
+ } line[C2C_HEADER_MAX];
+};
+
+struct c2c_dimension {
+ struct c2c_header header;
+ const char *name;
+ int width;
+
+ int64_t (*cmp)(struct perf_hpp_fmt *fmt,
+ struct hist_entry *, struct hist_entry *);
+ int (*entry)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+ struct hist_entry *he);
+ int (*color)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+ struct hist_entry *he);
+};
+
+struct c2c_fmt {
+ struct perf_hpp_fmt fmt;
+ struct c2c_dimension *dim;
+};
+
+static int c2c_width(struct perf_hpp_fmt *fmt,
+ struct perf_hpp *hpp __maybe_unused,
+ struct hists *hists __maybe_unused)
+{
+ struct c2c_fmt *c2c_fmt;
+
+ c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
+ return c2c_fmt->dim->width;
+}
+
+static int c2c_header(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+ struct hists *hists __maybe_unused, int line, int *span)
+{
+ struct c2c_fmt *c2c_fmt;
+ struct c2c_dimension *dim;
+ int len = c2c_width(fmt, hpp, hists);
+ const char *text;
+
+ c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
+ dim = c2c_fmt->dim;
+
+ text = dim->header.line[line].text;
+ if (text == NULL)
+ text = "";
+
+ if (*span) {
+ (*span)--;
+ return 0;
+ } else {
+ *span = dim->header.line[line].span;
+ }
+
+ return scnprintf(hpp->buf, hpp->size, "%*s", len, text);
+}
+
+static struct c2c_dimension *dimensions[] = {
+ NULL,
+};
+
+static void fmt_free(struct perf_hpp_fmt *fmt)
+{
+ struct c2c_fmt *c2c_fmt;
+
+ c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
+ free(c2c_fmt);
+}
+
+static bool fmt_equal(struct perf_hpp_fmt *a, struct perf_hpp_fmt *b)
+{
+ struct c2c_fmt *c2c_a = container_of(a, struct c2c_fmt, fmt);
+ struct c2c_fmt *c2c_b = container_of(b, struct c2c_fmt, fmt);
+
+ return c2c_a->dim == c2c_b->dim;
+}
+
+static struct c2c_dimension *get_dimension(const char *name)
+{
+ unsigned int i;
+
+ for (i = 0; dimensions[i]; i++) {
+ struct c2c_dimension *dim = dimensions[i];
+
+ if (!strcmp(dim->name, name))
+ return dim;
+ };
+
+ return NULL;
+}
+
+static struct c2c_fmt *get_format(const char *name)
+{
+ struct c2c_dimension *dim = get_dimension(name);
+ struct c2c_fmt *c2c_fmt;
+ struct perf_hpp_fmt *fmt;
+
+ if (!dim)
+ return NULL;
+
+ c2c_fmt = zalloc(sizeof(*c2c_fmt));
+ if (!c2c_fmt)
+ return NULL;
+
+ c2c_fmt->dim = dim;
+
+ fmt = &c2c_fmt->fmt;
+ INIT_LIST_HEAD(&fmt->list);
+ INIT_LIST_HEAD(&fmt->sort_list);
+
+ fmt->cmp = dim->cmp;
+ fmt->sort = dim->cmp;
+ fmt->entry = dim->entry;
+ fmt->header = c2c_header;
+ fmt->width = c2c_width;
+ fmt->collapse = dim->cmp;
+ fmt->equal = fmt_equal;
+ fmt->free = fmt_free;
+
+ return c2c_fmt;
+}
+
+static int c2c_hists__init_output(struct perf_hpp_list *hpp_list, char *name)
+{
+ struct c2c_fmt *c2c_fmt = get_format(name);
+
+ if (!c2c_fmt)
+ return -1;
+
+ perf_hpp_list__column_register(hpp_list, &c2c_fmt->fmt);
+ return 0;
+}
+
+static int c2c_hists__init_sort(struct perf_hpp_list *hpp_list, char *name)
+{
+ struct c2c_fmt *c2c_fmt = get_format(name);
+
+ if (!c2c_fmt)
+ return -1;
+
+ perf_hpp_list__register_sort_field(hpp_list, &c2c_fmt->fmt);
+ return 0;
+}
+
+#define PARSE_LIST(_list, _fn) \
+ do { \
+ char *tmp, *tok; \
+ ret = 0; \
+ \
+ if (!_list) \
+ break; \
+ \
+ for (tok = strtok_r((char *)_list, ", ", &tmp); \
+ tok; tok = strtok_r(NULL, ", ", &tmp)) { \
+ ret = _fn(hpp_list, tok); \
+ if (ret == -EINVAL) { \
+ error("Invalid --fields key: `%s'", tok); \
+ break; \
+ } else if (ret == -ESRCH) { \
+ error("Unknown --fields key: `%s'", tok); \
+ break; \
+ } \
+ } \
+ } while (0)
+
+static int hpp_list__parse(struct perf_hpp_list *hpp_list,
+ const char *output_,
+ const char *sort_)
+{
+ char *output = output_ ? strdup(output_) : NULL;
+ char *sort = sort_ ? strdup(sort_) : NULL;
+ int ret;
+
+ PARSE_LIST(output, c2c_hists__init_output);
+ PARSE_LIST(sort, c2c_hists__init_sort);
+
+ /* copy sort keys to output fields */
+ perf_hpp__setup_output_field(hpp_list);
+
+ /*
+ * We dont need other sorting keys other than those
+ * we already specified. It also really slows down
+ * the processing a lot with big number of output
+ * fields, so switching this off for c2c.
+ */
+
+#if 0
+ /* and then copy output fields to sort keys */
+ perf_hpp__append_sort_keys(&hists->list);
+#endif
+
+ free(output);
+ free(sort);
+ return ret;
+}
+
+static int c2c_hists__init(struct c2c_hists *hists,
+ const char *sort)
+{
+ __hists__init(&hists->hists, &hists->list);
+
+ /*
+ * Initialize only with sort fields, we need to resort
+ * later anyway, and that's where we add output fields
+ * as well.
+ */
+ perf_hpp_list__init(&hists->list);
+
+ return hpp_list__parse(&hists->list, NULL, sort);
+}
+
+__maybe_unused
+static int c2c_hists__reinit(struct c2c_hists *c2c_hists,
+ const char *output,
+ const char *sort)
+{
+ perf_hpp__reset_output_field(&c2c_hists->list);
+ return hpp_list__parse(&c2c_hists->list, output, sort);
+}
+
static int perf_c2c__report(int argc, const char **argv)
{
struct perf_session *session;
@@ -52,6 +283,12 @@ static int perf_c2c__report(int argc, const char **argv)
file.path = input_name;
+ err = c2c_hists__init(&c2c.hists, "dcacheline");
+ if (err) {
+ pr_debug("Failed to initialize hists\n");
+ goto out;
+ }
+
session = perf_session__new(&file, 0, &c2c.tool);
if (session == NULL) {
pr_debug("No memory for session\n");
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 07/52] perf c2c report: Add sort_entry dimension support
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (5 preceding siblings ...)
2016-10-20 15:03 ` [PATCH 06/52] perf c2c report: Add dimension support Arnaldo Carvalho de Melo
@ 2016-10-20 15:03 ` Arnaldo Carvalho de Melo
2016-10-20 15:03 ` [PATCH 08/52] perf c2c report: Fallback to standard dimensions Arnaldo Carvalho de Melo
` (46 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:03 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Allow to reuse 'struct sort_entry' objects within c2c dimension support.
In case the 'struct sort_entry' object meets the need of c2c report we
will use it directly in following patches.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1474558645-19956-15-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 82 ++++++++++++++++++++++++++++++++++++++----------
1 file changed, 65 insertions(+), 17 deletions(-)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 63c0e2d8d2d8..6b58b537bc9d 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -9,6 +9,7 @@
#include "hist.h"
#include "tool.h"
#include "data.h"
+#include "sort.h"
struct c2c_hists {
struct hists hists;
@@ -47,6 +48,7 @@ struct c2c_dimension {
struct c2c_header header;
const char *name;
int width;
+ struct sort_entry *se;
int64_t (*cmp)(struct perf_hpp_fmt *fmt,
struct hist_entry *, struct hist_entry *);
@@ -66,34 +68,47 @@ static int c2c_width(struct perf_hpp_fmt *fmt,
struct hists *hists __maybe_unused)
{
struct c2c_fmt *c2c_fmt;
+ struct c2c_dimension *dim;
c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
- return c2c_fmt->dim->width;
+ dim = c2c_fmt->dim;
+
+ return dim->se ? hists__col_len(hists, dim->se->se_width_idx) :
+ c2c_fmt->dim->width;
}
static int c2c_header(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
- struct hists *hists __maybe_unused, int line, int *span)
+ struct hists *hists, int line, int *span)
{
+ struct perf_hpp_list *hpp_list = hists->hpp_list;
struct c2c_fmt *c2c_fmt;
struct c2c_dimension *dim;
- int len = c2c_width(fmt, hpp, hists);
- const char *text;
+ const char *text = NULL;
+ int width = c2c_width(fmt, hpp, hists);
c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
dim = c2c_fmt->dim;
- text = dim->header.line[line].text;
- if (text == NULL)
- text = "";
-
- if (*span) {
- (*span)--;
- return 0;
+ if (dim->se) {
+ text = dim->header.line[line].text;
+ /* Use the last line from sort_entry if not defined. */
+ if (!text && (line == hpp_list->nr_header_lines - 1))
+ text = dim->se->se_header;
} else {
- *span = dim->header.line[line].span;
+ text = dim->header.line[line].text;
+
+ if (*span) {
+ (*span)--;
+ return 0;
+ } else {
+ *span = dim->header.line[line].span;
+ }
}
- return scnprintf(hpp->buf, hpp->size, "%*s", len, text);
+ if (text == NULL)
+ text = "";
+
+ return scnprintf(hpp->buf, hpp->size, "%*s", width, text);
}
static struct c2c_dimension *dimensions[] = {
@@ -130,6 +145,39 @@ static struct c2c_dimension *get_dimension(const char *name)
return NULL;
}
+static int c2c_se_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+ struct hist_entry *he)
+{
+ struct c2c_fmt *c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
+ struct c2c_dimension *dim = c2c_fmt->dim;
+ size_t len = fmt->user_len;
+
+ if (!len)
+ len = hists__col_len(he->hists, dim->se->se_width_idx);
+
+ return dim->se->se_snprintf(he, hpp->buf, hpp->size, len);
+}
+
+static int64_t c2c_se_cmp(struct perf_hpp_fmt *fmt,
+ struct hist_entry *a, struct hist_entry *b)
+{
+ struct c2c_fmt *c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
+ struct c2c_dimension *dim = c2c_fmt->dim;
+
+ return dim->se->se_cmp(a, b);
+}
+
+static int64_t c2c_se_collapse(struct perf_hpp_fmt *fmt,
+ struct hist_entry *a, struct hist_entry *b)
+{
+ struct c2c_fmt *c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
+ struct c2c_dimension *dim = c2c_fmt->dim;
+ int64_t (*collapse_fn)(struct hist_entry *, struct hist_entry *);
+
+ collapse_fn = dim->se->se_collapse ?: dim->se->se_cmp;
+ return collapse_fn(a, b);
+}
+
static struct c2c_fmt *get_format(const char *name)
{
struct c2c_dimension *dim = get_dimension(name);
@@ -149,12 +197,12 @@ static struct c2c_fmt *get_format(const char *name)
INIT_LIST_HEAD(&fmt->list);
INIT_LIST_HEAD(&fmt->sort_list);
- fmt->cmp = dim->cmp;
- fmt->sort = dim->cmp;
- fmt->entry = dim->entry;
+ fmt->cmp = dim->se ? c2c_se_cmp : dim->cmp;
+ fmt->sort = dim->se ? c2c_se_cmp : dim->cmp;
+ fmt->entry = dim->se ? c2c_se_entry : dim->entry;
fmt->header = c2c_header;
fmt->width = c2c_width;
- fmt->collapse = dim->cmp;
+ fmt->collapse = dim->se ? c2c_se_collapse : dim->cmp;
fmt->equal = fmt_equal;
fmt->free = fmt_free;
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 08/52] perf c2c report: Fallback to standard dimensions
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (6 preceding siblings ...)
2016-10-20 15:03 ` [PATCH 07/52] perf c2c report: Add sort_entry " Arnaldo Carvalho de Melo
@ 2016-10-20 15:03 ` Arnaldo Carvalho de Melo
2016-10-20 15:03 ` [PATCH 09/52] perf c2c report: Add sample processing Arnaldo Carvalho de Melo
` (45 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:03 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Fallback to standard dimensions in case we don't find the dimension
within c2c ones.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1474558645-19956-16-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 6b58b537bc9d..a3481f86e2ae 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -213,8 +213,10 @@ static int c2c_hists__init_output(struct perf_hpp_list *hpp_list, char *name)
{
struct c2c_fmt *c2c_fmt = get_format(name);
- if (!c2c_fmt)
- return -1;
+ if (!c2c_fmt) {
+ reset_dimensions();
+ return output_field_add(hpp_list, name);
+ }
perf_hpp_list__column_register(hpp_list, &c2c_fmt->fmt);
return 0;
@@ -224,8 +226,10 @@ static int c2c_hists__init_sort(struct perf_hpp_list *hpp_list, char *name)
{
struct c2c_fmt *c2c_fmt = get_format(name);
- if (!c2c_fmt)
- return -1;
+ if (!c2c_fmt) {
+ reset_dimensions();
+ return sort_dimension__add(hpp_list, name, NULL, 0);
+ }
perf_hpp_list__register_sort_field(hpp_list, &c2c_fmt->fmt);
return 0;
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 09/52] perf c2c report: Add sample processing
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (7 preceding siblings ...)
2016-10-20 15:03 ` [PATCH 08/52] perf c2c report: Fallback to standard dimensions Arnaldo Carvalho de Melo
@ 2016-10-20 15:03 ` Arnaldo Carvalho de Melo
2016-10-20 15:03 ` [PATCH 10/52] perf c2c report: Add cacheline hists processing Arnaldo Carvalho de Melo
` (44 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:03 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Adding basic sample processing specific hist_entry allocation callbacks
(via hists__add_entry_ops).
Overloading 'struct hist_entry' object with new 'struct c2c_hist_entry'.
The new hist entry object will carry specific stats and nested hists
objects.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1474558645-19956-17-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 108 ++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 107 insertions(+), 1 deletion(-)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index a3481f86e2ae..29fb9573e292 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -16,6 +16,15 @@ struct c2c_hists {
struct perf_hpp_list list;
};
+struct c2c_hist_entry {
+ struct c2c_hists *hists;
+ /*
+ * must be at the end,
+ * because of its callchain dynamic entry
+ */
+ struct hist_entry he;
+};
+
struct perf_c2c {
struct perf_tool tool;
struct c2c_hists hists;
@@ -23,6 +32,86 @@ struct perf_c2c {
static struct perf_c2c c2c;
+static void *c2c_he_zalloc(size_t size)
+{
+ struct c2c_hist_entry *c2c_he;
+
+ c2c_he = zalloc(size + sizeof(*c2c_he));
+ if (!c2c_he)
+ return NULL;
+
+ return &c2c_he->he;
+}
+
+static void c2c_he_free(void *he)
+{
+ struct c2c_hist_entry *c2c_he;
+
+ c2c_he = container_of(he, struct c2c_hist_entry, he);
+ if (c2c_he->hists) {
+ hists__delete_entries(&c2c_he->hists->hists);
+ free(c2c_he->hists);
+ }
+
+ free(c2c_he);
+}
+
+static struct hist_entry_ops c2c_entry_ops = {
+ .new = c2c_he_zalloc,
+ .free = c2c_he_free,
+};
+
+static int process_sample_event(struct perf_tool *tool __maybe_unused,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct perf_evsel *evsel __maybe_unused,
+ struct machine *machine)
+{
+ struct hists *hists = &c2c.hists.hists;
+ struct hist_entry *he;
+ struct addr_location al;
+ struct mem_info *mi;
+ int ret;
+
+ if (machine__resolve(machine, &al, sample) < 0) {
+ pr_debug("problem processing %d event, skipping it.\n",
+ event->header.type);
+ return -1;
+ }
+
+ mi = sample__resolve_mem(sample, &al);
+ if (mi == NULL)
+ return -ENOMEM;
+
+ he = hists__add_entry_ops(hists, &c2c_entry_ops,
+ &al, NULL, NULL, mi,
+ sample, true);
+ if (he == NULL) {
+ free(mi);
+ return -ENOMEM;
+ }
+
+ hists__inc_nr_samples(hists, he->filtered);
+ ret = hist_entry__append_callchain(he, sample);
+
+ addr_location__put(&al);
+ return ret;
+}
+
+static struct perf_c2c c2c = {
+ .tool = {
+ .sample = process_sample_event,
+ .mmap = perf_event__process_mmap,
+ .mmap2 = perf_event__process_mmap2,
+ .comm = perf_event__process_comm,
+ .exit = perf_event__process_exit,
+ .fork = perf_event__process_fork,
+ .lost = perf_event__process_lost,
+ .ordered_events = true,
+ .ordering_requires_timestamps = true,
+ },
+};
+
static const char * const c2c_usage[] = {
"perf c2c {record|report}",
NULL
@@ -314,6 +403,7 @@ static int c2c_hists__reinit(struct c2c_hists *c2c_hists,
static int perf_c2c__report(int argc, const char **argv)
{
struct perf_session *session;
+ struct ui_progress prog;
struct perf_data_file file = {
.mode = PERF_DATA_MODE_READ,
};
@@ -330,9 +420,12 @@ static int perf_c2c__report(int argc, const char **argv)
argc = parse_options(argc, argv, c2c_options, report_c2c_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
- if (!argc)
+ if (argc)
usage_with_options(report_c2c_usage, c2c_options);
+ if (!input_name || !strlen(input_name))
+ input_name = "perf.data";
+
file.path = input_name;
err = c2c_hists__init(&c2c.hists, "dcacheline");
@@ -356,6 +449,19 @@ static int perf_c2c__report(int argc, const char **argv)
goto out_session;
}
+ err = perf_session__process_events(session);
+ if (err) {
+ pr_err("failed to process sample\n");
+ goto out_session;
+ }
+
+ ui_progress__init(&prog, c2c.hists.hists.nr_entries, "Sorting...");
+
+ hists__collapse_resort(&c2c.hists.hists, NULL);
+ hists__output_resort(&c2c.hists.hists, &prog);
+
+ ui_progress__finish();
+
out_session:
perf_session__delete(session);
out:
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 10/52] perf c2c report: Add cacheline hists processing
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (8 preceding siblings ...)
2016-10-20 15:03 ` [PATCH 09/52] perf c2c report: Add sample processing Arnaldo Carvalho de Melo
@ 2016-10-20 15:03 ` Arnaldo Carvalho de Melo
2016-10-20 15:03 ` [PATCH 11/52] perf c2c report: Decode c2c_stats for hist entries Arnaldo Carvalho de Melo
` (43 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:03 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Store cacheline related entries in nested hist object for each cacheline
data. Nested entries are sorted by 'offset' within related cacheline.
We will allow specific sort keys to be configured for nested cacheline
data entries in following patches.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1474558645-19956-18-git-send-email-jolsa@kernel.org
[ he__get_hists() should return NULL when c2c_hists__init() fails ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 92 ++++++++++++++++++++++++++++++++++++++++++++----
1 file changed, 86 insertions(+), 6 deletions(-)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 29fb9573e292..df413b564361 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -61,6 +61,34 @@ static struct hist_entry_ops c2c_entry_ops = {
.free = c2c_he_free,
};
+static int c2c_hists__init(struct c2c_hists *hists,
+ const char *sort);
+
+static struct hists*
+he__get_hists(struct hist_entry *he,
+ const char *sort)
+{
+ struct c2c_hist_entry *c2c_he;
+ struct c2c_hists *hists;
+ int ret;
+
+ c2c_he = container_of(he, struct c2c_hist_entry, he);
+ if (c2c_he->hists)
+ return &c2c_he->hists->hists;
+
+ hists = c2c_he->hists = zalloc(sizeof(*hists));
+ if (!hists)
+ return NULL;
+
+ ret = c2c_hists__init(hists, sort);
+ if (ret) {
+ free(hists);
+ return NULL;
+ }
+
+ return &hists->hists;
+}
+
static int process_sample_event(struct perf_tool *tool __maybe_unused,
union perf_event *event,
struct perf_sample *sample,
@@ -70,7 +98,7 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused,
struct hists *hists = &c2c.hists.hists;
struct hist_entry *he;
struct addr_location al;
- struct mem_info *mi;
+ struct mem_info *mi, *mi_dup;
int ret;
if (machine__resolve(machine, &al, sample) < 0) {
@@ -83,19 +111,50 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused,
if (mi == NULL)
return -ENOMEM;
+ mi_dup = memdup(mi, sizeof(*mi));
+ if (!mi_dup)
+ goto free_mi;
+
he = hists__add_entry_ops(hists, &c2c_entry_ops,
&al, NULL, NULL, mi,
sample, true);
- if (he == NULL) {
- free(mi);
- return -ENOMEM;
- }
+ if (he == NULL)
+ goto free_mi_dup;
hists__inc_nr_samples(hists, he->filtered);
ret = hist_entry__append_callchain(he, sample);
+ if (!ret) {
+ mi = mi_dup;
+
+ mi_dup = memdup(mi, sizeof(*mi));
+ if (!mi_dup)
+ goto free_mi;
+
+ hists = he__get_hists(he, "offset");
+ if (!hists)
+ goto free_mi_dup;
+
+ he = hists__add_entry_ops(hists, &c2c_entry_ops,
+ &al, NULL, NULL, mi,
+ sample, true);
+ if (he == NULL)
+ goto free_mi_dup;
+
+ hists__inc_nr_samples(hists, he->filtered);
+ ret = hist_entry__append_callchain(he, sample);
+ }
+
+out:
addr_location__put(&al);
return ret;
+
+free_mi_dup:
+ free(mi_dup);
+free_mi:
+ free(mi);
+ ret = -ENOMEM;
+ goto out;
}
static struct perf_c2c c2c = {
@@ -400,6 +459,27 @@ static int c2c_hists__reinit(struct c2c_hists *c2c_hists,
return hpp_list__parse(&c2c_hists->list, output, sort);
}
+static int filter_cb(struct hist_entry *he __maybe_unused)
+{
+ return 0;
+}
+
+static int resort_cl_cb(struct hist_entry *he)
+{
+ struct c2c_hist_entry *c2c_he;
+ struct c2c_hists *c2c_hists;
+
+ c2c_he = container_of(he, struct c2c_hist_entry, he);
+ c2c_hists = c2c_he->hists;
+
+ if (c2c_hists) {
+ hists__collapse_resort(&c2c_hists->hists, NULL);
+ hists__output_resort_cb(&c2c_hists->hists, NULL, filter_cb);
+ }
+
+ return 0;
+}
+
static int perf_c2c__report(int argc, const char **argv)
{
struct perf_session *session;
@@ -458,7 +538,7 @@ static int perf_c2c__report(int argc, const char **argv)
ui_progress__init(&prog, c2c.hists.hists.nr_entries, "Sorting...");
hists__collapse_resort(&c2c.hists.hists, NULL);
- hists__output_resort(&c2c.hists.hists, &prog);
+ hists__output_resort_cb(&c2c.hists.hists, &prog, resort_cl_cb);
ui_progress__finish();
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 11/52] perf c2c report: Decode c2c_stats for hist entries
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (9 preceding siblings ...)
2016-10-20 15:03 ` [PATCH 10/52] perf c2c report: Add cacheline hists processing Arnaldo Carvalho de Melo
@ 2016-10-20 15:03 ` Arnaldo Carvalho de Melo
2016-10-20 15:03 ` [PATCH 12/52] perf c2c report: Add header macros Arnaldo Carvalho de Melo
` (42 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:03 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Decoding and storing c2c_stats for each hist entry. Changing related
function to work with c2c_* objects.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1474558645-19956-19-git-send-email-jolsa@kernel.org
[ Add '.nr_entries = 0' to the c2c_stats initialization to fix the build on older distros ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 38 ++++++++++++++++++++++++++------------
1 file changed, 26 insertions(+), 12 deletions(-)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index df413b564361..43f18aa3367b 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -14,10 +14,12 @@
struct c2c_hists {
struct hists hists;
struct perf_hpp_list list;
+ struct c2c_stats stats;
};
struct c2c_hist_entry {
struct c2c_hists *hists;
+ struct c2c_stats stats;
/*
* must be at the end,
* because of its callchain dynamic entry
@@ -64,9 +66,9 @@ static struct hist_entry_ops c2c_entry_ops = {
static int c2c_hists__init(struct c2c_hists *hists,
const char *sort);
-static struct hists*
-he__get_hists(struct hist_entry *he,
- const char *sort)
+static struct c2c_hists*
+he__get_c2c_hists(struct hist_entry *he,
+ const char *sort)
{
struct c2c_hist_entry *c2c_he;
struct c2c_hists *hists;
@@ -74,7 +76,7 @@ he__get_hists(struct hist_entry *he,
c2c_he = container_of(he, struct c2c_hist_entry, he);
if (c2c_he->hists)
- return &c2c_he->hists->hists;
+ return c2c_he->hists;
hists = c2c_he->hists = zalloc(sizeof(*hists));
if (!hists)
@@ -86,7 +88,7 @@ he__get_hists(struct hist_entry *he,
return NULL;
}
- return &hists->hists;
+ return hists;
}
static int process_sample_event(struct perf_tool *tool __maybe_unused,
@@ -95,7 +97,9 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused,
struct perf_evsel *evsel __maybe_unused,
struct machine *machine)
{
- struct hists *hists = &c2c.hists.hists;
+ struct c2c_hists *c2c_hists = &c2c.hists;
+ struct c2c_hist_entry *c2c_he;
+ struct c2c_stats stats = { .nr_entries = 0, };
struct hist_entry *he;
struct addr_location al;
struct mem_info *mi, *mi_dup;
@@ -115,13 +119,19 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused,
if (!mi_dup)
goto free_mi;
- he = hists__add_entry_ops(hists, &c2c_entry_ops,
+ c2c_decode_stats(&stats, mi);
+
+ he = hists__add_entry_ops(&c2c_hists->hists, &c2c_entry_ops,
&al, NULL, NULL, mi,
sample, true);
if (he == NULL)
goto free_mi_dup;
- hists__inc_nr_samples(hists, he->filtered);
+ c2c_he = container_of(he, struct c2c_hist_entry, he);
+ c2c_add_stats(&c2c_he->stats, &stats);
+ c2c_add_stats(&c2c_hists->stats, &stats);
+
+ hists__inc_nr_samples(&c2c_hists->hists, he->filtered);
ret = hist_entry__append_callchain(he, sample);
if (!ret) {
@@ -131,17 +141,21 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused,
if (!mi_dup)
goto free_mi;
- hists = he__get_hists(he, "offset");
- if (!hists)
+ c2c_hists = he__get_c2c_hists(he, "offset");
+ if (!c2c_hists)
goto free_mi_dup;
- he = hists__add_entry_ops(hists, &c2c_entry_ops,
+ he = hists__add_entry_ops(&c2c_hists->hists, &c2c_entry_ops,
&al, NULL, NULL, mi,
sample, true);
if (he == NULL)
goto free_mi_dup;
- hists__inc_nr_samples(hists, he->filtered);
+ c2c_he = container_of(he, struct c2c_hist_entry, he);
+ c2c_add_stats(&c2c_he->stats, &stats);
+ c2c_add_stats(&c2c_hists->stats, &stats);
+
+ hists__inc_nr_samples(&c2c_hists->hists, he->filtered);
ret = hist_entry__append_callchain(he, sample);
}
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 12/52] perf c2c report: Add header macros
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (10 preceding siblings ...)
2016-10-20 15:03 ` [PATCH 11/52] perf c2c report: Decode c2c_stats for hist entries Arnaldo Carvalho de Melo
@ 2016-10-20 15:03 ` Arnaldo Carvalho de Melo
2016-10-20 15:03 ` [PATCH 13/52] perf c2c report: Add 'dcacheline' dimension key Arnaldo Carvalho de Melo
` (41 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:03 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Adding helping macros to define header objects. It will be used in
following patches, that add new dimensions.
The c2c report will support 2 line headers, hence we only define
line[0/1] in macros.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1474558645-19956-20-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 35 +++++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 43f18aa3367b..78addc42c9e5 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -273,6 +273,41 @@ static int c2c_header(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
return scnprintf(hpp->buf, hpp->size, "%*s", width, text);
}
+#define HEADER_LOW(__h) \
+ { \
+ .line[1] = { \
+ .text = __h, \
+ }, \
+ }
+
+#define HEADER_BOTH(__h0, __h1) \
+ { \
+ .line[0] = { \
+ .text = __h0, \
+ }, \
+ .line[1] = { \
+ .text = __h1, \
+ }, \
+ }
+
+#define HEADER_SPAN(__h0, __h1, __s) \
+ { \
+ .line[0] = { \
+ .text = __h0, \
+ .span = __s, \
+ }, \
+ .line[1] = { \
+ .text = __h1, \
+ }, \
+ }
+
+#define HEADER_SPAN_LOW(__h) \
+ { \
+ .line[1] = { \
+ .text = __h, \
+ }, \
+ }
+
static struct c2c_dimension *dimensions[] = {
NULL,
};
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 13/52] perf c2c report: Add 'dcacheline' dimension key
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (11 preceding siblings ...)
2016-10-20 15:03 ` [PATCH 12/52] perf c2c report: Add header macros Arnaldo Carvalho de Melo
@ 2016-10-20 15:03 ` Arnaldo Carvalho de Melo
2016-10-20 15:03 ` [PATCH 14/52] perf c2c report: Add 'offset' " Arnaldo Carvalho de Melo
` (40 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:03 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
It displays cacheline address as hex number.
Using c2c wrapper to standard 'dcacheline' object to defined own header
and simple (just address) cacheline output.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1474558645-19956-21-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 37 +++++++++++++++++++++++++++++++++++++
1 file changed, 37 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 78addc42c9e5..3a3e67f6e772 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -1,5 +1,6 @@
#include <linux/compiler.h>
#include <linux/kernel.h>
+#include <linux/stringify.h>
#include "util.h"
#include "debug.h"
#include "builtin.h"
@@ -7,6 +8,7 @@
#include "mem-events.h"
#include "session.h"
#include "hist.h"
+#include "sort.h"
#include "tool.h"
#include "data.h"
#include "sort.h"
@@ -273,6 +275,32 @@ static int c2c_header(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
return scnprintf(hpp->buf, hpp->size, "%*s", width, text);
}
+#define HEX_STR(__s, __v) \
+({ \
+ scnprintf(__s, sizeof(__s), "0x%" PRIx64, __v); \
+ __s; \
+})
+
+static int64_t
+dcacheline_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
+ struct hist_entry *left, struct hist_entry *right)
+{
+ return sort__dcacheline_cmp(left, right);
+}
+
+static int dcacheline_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+ struct hist_entry *he)
+{
+ uint64_t addr = 0;
+ int width = c2c_width(fmt, hpp, he->hists);
+ char buf[20];
+
+ if (he->mem_info)
+ addr = cl_address(he->mem_info->daddr.addr);
+
+ return scnprintf(hpp->buf, hpp->size, "%*s", width, HEX_STR(buf, addr));
+}
+
#define HEADER_LOW(__h) \
{ \
.line[1] = { \
@@ -308,7 +336,16 @@ static int c2c_header(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
}, \
}
+static struct c2c_dimension dim_dcacheline = {
+ .header = HEADER_LOW("Cacheline"),
+ .name = "dcacheline",
+ .cmp = dcacheline_cmp,
+ .entry = dcacheline_entry,
+ .width = 18,
+};
+
static struct c2c_dimension *dimensions[] = {
+ &dim_dcacheline,
NULL,
};
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 14/52] perf c2c report: Add 'offset' dimension key
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (12 preceding siblings ...)
2016-10-20 15:03 ` [PATCH 13/52] perf c2c report: Add 'dcacheline' dimension key Arnaldo Carvalho de Melo
@ 2016-10-20 15:03 ` Arnaldo Carvalho de Melo
2016-10-20 15:03 ` [PATCH 15/52] perf c2c report: Add 'iaddr' " Arnaldo Carvalho de Melo
` (39 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:03 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
It displays cacheline offset as hex number.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-m0424ye98lqveg5nopto8qww@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 36 ++++++++++++++++++++++++++++++++++++
1 file changed, 36 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 3a3e67f6e772..01d541fd7022 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -301,6 +301,33 @@ static int dcacheline_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
return scnprintf(hpp->buf, hpp->size, "%*s", width, HEX_STR(buf, addr));
}
+static int offset_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+ struct hist_entry *he)
+{
+ uint64_t addr = 0;
+ int width = c2c_width(fmt, hpp, he->hists);
+ char buf[20];
+
+ if (he->mem_info)
+ addr = cl_offset(he->mem_info->daddr.al_addr);
+
+ return scnprintf(hpp->buf, hpp->size, "%*s", width, HEX_STR(buf, addr));
+}
+
+static int64_t
+offset_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
+ struct hist_entry *left, struct hist_entry *right)
+{
+ uint64_t l = 0, r = 0;
+
+ if (left->mem_info)
+ l = cl_offset(left->mem_info->daddr.addr);
+ if (right->mem_info)
+ r = cl_offset(right->mem_info->daddr.addr);
+
+ return (int64_t)(r - l);
+}
+
#define HEADER_LOW(__h) \
{ \
.line[1] = { \
@@ -344,8 +371,17 @@ static struct c2c_dimension dim_dcacheline = {
.width = 18,
};
+static struct c2c_dimension dim_offset = {
+ .header = HEADER_BOTH("Data address", "Offset"),
+ .name = "offset",
+ .cmp = offset_cmp,
+ .entry = offset_entry,
+ .width = 18,
+};
+
static struct c2c_dimension *dimensions[] = {
&dim_dcacheline,
+ &dim_offset,
NULL,
};
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 15/52] perf c2c report: Add 'iaddr' dimension key
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (13 preceding siblings ...)
2016-10-20 15:03 ` [PATCH 14/52] perf c2c report: Add 'offset' " Arnaldo Carvalho de Melo
@ 2016-10-20 15:03 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 16/52] perf c2c report: Add hitm related dimension keys Arnaldo Carvalho de Melo
` (38 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:03 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
It displays the code address (as hex number) responsible for the
accesses.
Using c2c wrapper to standard 'symbol_iaddr' object to define own header
and simple (just address) code address output.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-rhshygbst6kr75kju0muwt5x@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 01d541fd7022..bb9d01874836 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -328,6 +328,27 @@ offset_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
return (int64_t)(r - l);
}
+static int
+iaddr_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+ struct hist_entry *he)
+{
+ uint64_t addr = 0;
+ int width = c2c_width(fmt, hpp, he->hists);
+ char buf[20];
+
+ if (he->mem_info)
+ addr = he->mem_info->iaddr.addr;
+
+ return scnprintf(hpp->buf, hpp->size, "%*s", width, HEX_STR(buf, addr));
+}
+
+static int64_t
+iaddr_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
+ struct hist_entry *left, struct hist_entry *right)
+{
+ return sort__iaddr_cmp(left, right);
+}
+
#define HEADER_LOW(__h) \
{ \
.line[1] = { \
@@ -379,9 +400,18 @@ static struct c2c_dimension dim_offset = {
.width = 18,
};
+static struct c2c_dimension dim_iaddr = {
+ .header = HEADER_LOW("Code address"),
+ .name = "iaddr",
+ .cmp = iaddr_cmp,
+ .entry = iaddr_entry,
+ .width = 18,
+};
+
static struct c2c_dimension *dimensions[] = {
&dim_dcacheline,
&dim_offset,
+ &dim_iaddr,
NULL,
};
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 16/52] perf c2c report: Add hitm related dimension keys
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (14 preceding siblings ...)
2016-10-20 15:03 ` [PATCH 15/52] perf c2c report: Add 'iaddr' " Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 17/52] perf c2c report: Add stores " Arnaldo Carvalho de Melo
` (37 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Adding 5 hitm related dimension key wrappers.
First 3 are to be displayed in the main cachelines overall output:
tot_hitm, lcl_hitm, rmt_hitm
The latter 2 are to be displayed within single cacheline output:
cl_rmt_hitm, cl_lcl_hitm
They all display bare numbers of remote/local/total HITMs for cacheline
or its related offsets.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-iju5239xa5heqqben65g1u7e@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 109 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 109 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index bb9d01874836..039e7369dc6c 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -349,6 +349,70 @@ iaddr_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
return sort__iaddr_cmp(left, right);
}
+static int
+tot_hitm_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+ struct hist_entry *he)
+{
+ struct c2c_hist_entry *c2c_he;
+ int width = c2c_width(fmt, hpp, he->hists);
+ unsigned int tot_hitm;
+
+ c2c_he = container_of(he, struct c2c_hist_entry, he);
+ tot_hitm = c2c_he->stats.lcl_hitm + c2c_he->stats.rmt_hitm;
+
+ return scnprintf(hpp->buf, hpp->size, "%*u", width, tot_hitm);
+}
+
+static int64_t
+tot_hitm_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
+ struct hist_entry *left, struct hist_entry *right)
+{
+ struct c2c_hist_entry *c2c_left;
+ struct c2c_hist_entry *c2c_right;
+ unsigned int tot_hitm_left;
+ unsigned int tot_hitm_right;
+
+ c2c_left = container_of(left, struct c2c_hist_entry, he);
+ c2c_right = container_of(right, struct c2c_hist_entry, he);
+
+ tot_hitm_left = c2c_left->stats.lcl_hitm + c2c_left->stats.rmt_hitm;
+ tot_hitm_right = c2c_right->stats.lcl_hitm + c2c_right->stats.rmt_hitm;
+
+ return tot_hitm_left - tot_hitm_right;
+}
+
+#define STAT_FN_ENTRY(__f) \
+static int \
+__f ## _entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, \
+ struct hist_entry *he) \
+{ \
+ struct c2c_hist_entry *c2c_he; \
+ int width = c2c_width(fmt, hpp, he->hists); \
+ \
+ c2c_he = container_of(he, struct c2c_hist_entry, he); \
+ return scnprintf(hpp->buf, hpp->size, "%*u", width, \
+ c2c_he->stats.__f); \
+}
+
+#define STAT_FN_CMP(__f) \
+static int64_t \
+__f ## _cmp(struct perf_hpp_fmt *fmt __maybe_unused, \
+ struct hist_entry *left, struct hist_entry *right) \
+{ \
+ struct c2c_hist_entry *c2c_left, *c2c_right; \
+ \
+ c2c_left = container_of(left, struct c2c_hist_entry, he); \
+ c2c_right = container_of(right, struct c2c_hist_entry, he); \
+ return c2c_left->stats.__f - c2c_right->stats.__f; \
+}
+
+#define STAT_FN(__f) \
+ STAT_FN_ENTRY(__f) \
+ STAT_FN_CMP(__f)
+
+STAT_FN(rmt_hitm)
+STAT_FN(lcl_hitm)
+
#define HEADER_LOW(__h) \
{ \
.line[1] = { \
@@ -408,10 +472,55 @@ static struct c2c_dimension dim_iaddr = {
.width = 18,
};
+static struct c2c_dimension dim_tot_hitm = {
+ .header = HEADER_SPAN("----- LLC Load Hitm -----", "Total", 2),
+ .name = "tot_hitm",
+ .cmp = tot_hitm_cmp,
+ .entry = tot_hitm_entry,
+ .width = 7,
+};
+
+static struct c2c_dimension dim_lcl_hitm = {
+ .header = HEADER_SPAN_LOW("Lcl"),
+ .name = "lcl_hitm",
+ .cmp = lcl_hitm_cmp,
+ .entry = lcl_hitm_entry,
+ .width = 7,
+};
+
+static struct c2c_dimension dim_rmt_hitm = {
+ .header = HEADER_SPAN_LOW("Rmt"),
+ .name = "rmt_hitm",
+ .cmp = rmt_hitm_cmp,
+ .entry = rmt_hitm_entry,
+ .width = 7,
+};
+
+static struct c2c_dimension dim_cl_rmt_hitm = {
+ .header = HEADER_SPAN("----- HITM -----", "Rmt", 1),
+ .name = "cl_rmt_hitm",
+ .cmp = rmt_hitm_cmp,
+ .entry = rmt_hitm_entry,
+ .width = 7,
+};
+
+static struct c2c_dimension dim_cl_lcl_hitm = {
+ .header = HEADER_SPAN_LOW("Lcl"),
+ .name = "cl_lcl_hitm",
+ .cmp = lcl_hitm_cmp,
+ .entry = lcl_hitm_entry,
+ .width = 7,
+};
+
static struct c2c_dimension *dimensions[] = {
&dim_dcacheline,
&dim_offset,
&dim_iaddr,
+ &dim_tot_hitm,
+ &dim_lcl_hitm,
+ &dim_rmt_hitm,
+ &dim_cl_lcl_hitm,
+ &dim_cl_rmt_hitm,
NULL,
};
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 17/52] perf c2c report: Add stores related dimension keys
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (15 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 16/52] perf c2c report: Add hitm related dimension keys Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 18/52] perf c2c report: Add loads " Arnaldo Carvalho de Melo
` (36 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Add 5 stores related dimension key wrappers.
First 3 are to be displayed in the main cachelines overall output:
stores, stores_l1hit, stores_l1miss
The latter 2 are to be displayed within single cacheline output:
cl_stores_l1hit, cl_stores_l1miss
They all display bare numbers of stores for cacheline or its related
offsets.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-qeml8v53v6q3wl5n8vgbf64r@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 48 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 039e7369dc6c..bfa0be398d5d 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -412,6 +412,9 @@ __f ## _cmp(struct perf_hpp_fmt *fmt __maybe_unused, \
STAT_FN(rmt_hitm)
STAT_FN(lcl_hitm)
+STAT_FN(store)
+STAT_FN(st_l1hit)
+STAT_FN(st_l1miss)
#define HEADER_LOW(__h) \
{ \
@@ -512,6 +515,46 @@ static struct c2c_dimension dim_cl_lcl_hitm = {
.width = 7,
};
+static struct c2c_dimension dim_stores = {
+ .header = HEADER_SPAN("---- Store Reference ----", "Total", 2),
+ .name = "stores",
+ .cmp = store_cmp,
+ .entry = store_entry,
+ .width = 7,
+};
+
+static struct c2c_dimension dim_stores_l1hit = {
+ .header = HEADER_SPAN_LOW("L1Hit"),
+ .name = "stores_l1hit",
+ .cmp = st_l1hit_cmp,
+ .entry = st_l1hit_entry,
+ .width = 7,
+};
+
+static struct c2c_dimension dim_stores_l1miss = {
+ .header = HEADER_SPAN_LOW("L1Miss"),
+ .name = "stores_l1miss",
+ .cmp = st_l1miss_cmp,
+ .entry = st_l1miss_entry,
+ .width = 7,
+};
+
+static struct c2c_dimension dim_cl_stores_l1hit = {
+ .header = HEADER_SPAN("-- Store Refs --", "L1 Hit", 1),
+ .name = "cl_stores_l1hit",
+ .cmp = st_l1hit_cmp,
+ .entry = st_l1hit_entry,
+ .width = 7,
+};
+
+static struct c2c_dimension dim_cl_stores_l1miss = {
+ .header = HEADER_SPAN_LOW("L1 Miss"),
+ .name = "cl_stores_l1miss",
+ .cmp = st_l1miss_cmp,
+ .entry = st_l1miss_entry,
+ .width = 7,
+};
+
static struct c2c_dimension *dimensions[] = {
&dim_dcacheline,
&dim_offset,
@@ -521,6 +564,11 @@ static struct c2c_dimension *dimensions[] = {
&dim_rmt_hitm,
&dim_cl_lcl_hitm,
&dim_cl_rmt_hitm,
+ &dim_stores,
+ &dim_stores_l1hit,
+ &dim_stores_l1miss,
+ &dim_cl_stores_l1hit,
+ &dim_cl_stores_l1miss,
NULL,
};
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 18/52] perf c2c report: Add loads related dimension keys
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (16 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 17/52] perf c2c report: Add stores " Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 19/52] perf c2c report: Add llc and remote " Arnaldo Carvalho de Melo
` (35 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Add 3 loads related dimension key wrappers.
They are to be displayed in the main cachelines overall output:
ld_fbhit, ld_l1hit, ld_l2hit
They all display bare numbers of loads for
FB (Fill Buffer), L1 and L2 cache.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-wxrzhy74zl8fvkvgjae3w1ju@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index bfa0be398d5d..2b9d24fdcaee 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -415,6 +415,9 @@ STAT_FN(lcl_hitm)
STAT_FN(store)
STAT_FN(st_l1hit)
STAT_FN(st_l1miss)
+STAT_FN(ld_fbhit)
+STAT_FN(ld_l1hit)
+STAT_FN(ld_l2hit)
#define HEADER_LOW(__h) \
{ \
@@ -555,6 +558,30 @@ static struct c2c_dimension dim_cl_stores_l1miss = {
.width = 7,
};
+static struct c2c_dimension dim_ld_fbhit = {
+ .header = HEADER_SPAN("----- Core Load Hit -----", "FB", 2),
+ .name = "ld_fbhit",
+ .cmp = ld_fbhit_cmp,
+ .entry = ld_fbhit_entry,
+ .width = 7,
+};
+
+static struct c2c_dimension dim_ld_l1hit = {
+ .header = HEADER_SPAN_LOW("L1"),
+ .name = "ld_l1hit",
+ .cmp = ld_l1hit_cmp,
+ .entry = ld_l1hit_entry,
+ .width = 7,
+};
+
+static struct c2c_dimension dim_ld_l2hit = {
+ .header = HEADER_SPAN_LOW("L2"),
+ .name = "ld_l2hit",
+ .cmp = ld_l2hit_cmp,
+ .entry = ld_l2hit_entry,
+ .width = 7,
+};
+
static struct c2c_dimension *dimensions[] = {
&dim_dcacheline,
&dim_offset,
@@ -569,6 +596,9 @@ static struct c2c_dimension *dimensions[] = {
&dim_stores_l1miss,
&dim_cl_stores_l1hit,
&dim_cl_stores_l1miss,
+ &dim_ld_fbhit,
+ &dim_ld_l1hit,
+ &dim_ld_l2hit,
NULL,
};
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 19/52] perf c2c report: Add llc and remote loads related dimension keys
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (17 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 18/52] perf c2c report: Add loads " Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 20/52] perf c2c report: Add llc load miss dimension key Arnaldo Carvalho de Melo
` (34 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Add 2 LLC load related dimension key wrappers.
They are to be displayed in the main cachelines overall output:
ld_lclhit, ld_rmthit
They display bare numbers of LLC and remote loads for cacheline.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-ahjg0voaufefboemjuj9yefh@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 2b9d24fdcaee..6b601836b031 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -418,6 +418,8 @@ STAT_FN(st_l1miss)
STAT_FN(ld_fbhit)
STAT_FN(ld_l1hit)
STAT_FN(ld_l2hit)
+STAT_FN(ld_llchit)
+STAT_FN(rmt_hit)
#define HEADER_LOW(__h) \
{ \
@@ -582,6 +584,22 @@ static struct c2c_dimension dim_ld_l2hit = {
.width = 7,
};
+static struct c2c_dimension dim_ld_llchit = {
+ .header = HEADER_SPAN("-- LLC Load Hit --", "Llc", 1),
+ .name = "ld_lclhit",
+ .cmp = ld_llchit_cmp,
+ .entry = ld_llchit_entry,
+ .width = 8,
+};
+
+static struct c2c_dimension dim_ld_rmthit = {
+ .header = HEADER_SPAN_LOW("Rmt"),
+ .name = "ld_rmthit",
+ .cmp = rmt_hit_cmp,
+ .entry = rmt_hit_entry,
+ .width = 8,
+};
+
static struct c2c_dimension *dimensions[] = {
&dim_dcacheline,
&dim_offset,
@@ -599,6 +617,8 @@ static struct c2c_dimension *dimensions[] = {
&dim_ld_fbhit,
&dim_ld_l1hit,
&dim_ld_l2hit,
+ &dim_ld_llchit,
+ &dim_ld_rmthit,
NULL,
};
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 20/52] perf c2c report: Add llc load miss dimension key
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (18 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 19/52] perf c2c report: Add llc and remote " Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 21/52] perf c2c report: Add total record sort key Arnaldo Carvalho de Melo
` (33 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
It is to be displayed in the main cachelines overall output:
ld_llcmiss
It displays bare number of LLC misses for cacheline.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-wojujik7zzen770mxn295mxa@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 47 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 6b601836b031..f525384dbbad 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -421,6 +421,44 @@ STAT_FN(ld_l2hit)
STAT_FN(ld_llchit)
STAT_FN(rmt_hit)
+static uint64_t llc_miss(struct c2c_stats *stats)
+{
+ uint64_t llcmiss;
+
+ llcmiss = stats->lcl_dram +
+ stats->rmt_dram +
+ stats->rmt_hitm +
+ stats->rmt_hit;
+
+ return llcmiss;
+}
+
+static int
+ld_llcmiss_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+ struct hist_entry *he)
+{
+ struct c2c_hist_entry *c2c_he;
+ int width = c2c_width(fmt, hpp, he->hists);
+
+ c2c_he = container_of(he, struct c2c_hist_entry, he);
+
+ return scnprintf(hpp->buf, hpp->size, "%*lu", width,
+ llc_miss(&c2c_he->stats));
+}
+
+static int64_t
+ld_llcmiss_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
+ struct hist_entry *left, struct hist_entry *right)
+{
+ struct c2c_hist_entry *c2c_left;
+ struct c2c_hist_entry *c2c_right;
+
+ c2c_left = container_of(left, struct c2c_hist_entry, he);
+ c2c_right = container_of(right, struct c2c_hist_entry, he);
+
+ return llc_miss(&c2c_left->stats) - llc_miss(&c2c_right->stats);
+}
+
#define HEADER_LOW(__h) \
{ \
.line[1] = { \
@@ -600,6 +638,14 @@ static struct c2c_dimension dim_ld_rmthit = {
.width = 8,
};
+static struct c2c_dimension dim_ld_llcmiss = {
+ .header = HEADER_BOTH("LLC", "Ld Miss"),
+ .name = "ld_llcmiss",
+ .cmp = ld_llcmiss_cmp,
+ .entry = ld_llcmiss_entry,
+ .width = 7,
+};
+
static struct c2c_dimension *dimensions[] = {
&dim_dcacheline,
&dim_offset,
@@ -619,6 +665,7 @@ static struct c2c_dimension *dimensions[] = {
&dim_ld_l2hit,
&dim_ld_llchit,
&dim_ld_rmthit,
+ &dim_ld_llcmiss,
NULL,
};
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 21/52] perf c2c report: Add total record sort key
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (19 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 20/52] perf c2c report: Add llc load miss dimension key Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 22/52] perf c2c report: Add total loads " Arnaldo Carvalho de Melo
` (32 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
It is to be displayed in the main cachelines overall output:
tot_recs
It displays sum of all cachelines accesses.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-wojujik7zzen770mxn295mxa@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 64 ++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 64 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index f525384dbbad..ff5b5b81d333 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -459,6 +459,61 @@ ld_llcmiss_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
return llc_miss(&c2c_left->stats) - llc_miss(&c2c_right->stats);
}
+static uint64_t total_records(struct c2c_stats *stats)
+{
+ uint64_t lclmiss, ldcnt, total;
+
+ lclmiss = stats->lcl_dram +
+ stats->rmt_dram +
+ stats->rmt_hitm +
+ stats->rmt_hit;
+
+ ldcnt = lclmiss +
+ stats->ld_fbhit +
+ stats->ld_l1hit +
+ stats->ld_l2hit +
+ stats->ld_llchit +
+ stats->lcl_hitm;
+
+ total = ldcnt +
+ stats->st_l1hit +
+ stats->st_l1miss;
+
+ return total;
+}
+
+static int
+tot_recs_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+ struct hist_entry *he)
+{
+ struct c2c_hist_entry *c2c_he;
+ int width = c2c_width(fmt, hpp, he->hists);
+ uint64_t tot_recs;
+
+ c2c_he = container_of(he, struct c2c_hist_entry, he);
+ tot_recs = total_records(&c2c_he->stats);
+
+ return scnprintf(hpp->buf, hpp->size, "%*" PRIu64, width, tot_recs);
+}
+
+static int64_t
+tot_recs_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
+ struct hist_entry *left, struct hist_entry *right)
+{
+ struct c2c_hist_entry *c2c_left;
+ struct c2c_hist_entry *c2c_right;
+ uint64_t tot_recs_left;
+ uint64_t tot_recs_right;
+
+ c2c_left = container_of(left, struct c2c_hist_entry, he);
+ c2c_right = container_of(right, struct c2c_hist_entry, he);
+
+ tot_recs_left = total_records(&c2c_left->stats);
+ tot_recs_right = total_records(&c2c_right->stats);
+
+ return tot_recs_left - tot_recs_right;
+}
+
#define HEADER_LOW(__h) \
{ \
.line[1] = { \
@@ -646,6 +701,14 @@ static struct c2c_dimension dim_ld_llcmiss = {
.width = 7,
};
+static struct c2c_dimension dim_tot_recs = {
+ .header = HEADER_BOTH("Total", "records"),
+ .name = "tot_recs",
+ .cmp = tot_recs_cmp,
+ .entry = tot_recs_entry,
+ .width = 7,
+};
+
static struct c2c_dimension *dimensions[] = {
&dim_dcacheline,
&dim_offset,
@@ -666,6 +729,7 @@ static struct c2c_dimension *dimensions[] = {
&dim_ld_llchit,
&dim_ld_rmthit,
&dim_ld_llcmiss,
+ &dim_tot_recs,
NULL,
};
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 22/52] perf c2c report: Add total loads sort key
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (20 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 21/52] perf c2c report: Add total record sort key Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 23/52] perf c2c report: Add hitm percent " Arnaldo Carvalho de Melo
` (31 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
It is to be displayed in the main cachelines overall output:
tot_loads
It displays sum of all load accesses for cacheline.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-czd17qsh5u5z0yc1estz9l2y@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 60 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index ff5b5b81d333..2411fe025bc7 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -514,6 +514,57 @@ tot_recs_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
return tot_recs_left - tot_recs_right;
}
+static uint64_t total_loads(struct c2c_stats *stats)
+{
+ uint64_t lclmiss, ldcnt;
+
+ lclmiss = stats->lcl_dram +
+ stats->rmt_dram +
+ stats->rmt_hitm +
+ stats->rmt_hit;
+
+ ldcnt = lclmiss +
+ stats->ld_fbhit +
+ stats->ld_l1hit +
+ stats->ld_l2hit +
+ stats->ld_llchit +
+ stats->lcl_hitm;
+
+ return ldcnt;
+}
+
+static int
+tot_loads_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+ struct hist_entry *he)
+{
+ struct c2c_hist_entry *c2c_he;
+ int width = c2c_width(fmt, hpp, he->hists);
+ uint64_t tot_recs;
+
+ c2c_he = container_of(he, struct c2c_hist_entry, he);
+ tot_recs = total_loads(&c2c_he->stats);
+
+ return scnprintf(hpp->buf, hpp->size, "%*" PRIu64, width, tot_recs);
+}
+
+static int64_t
+tot_loads_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
+ struct hist_entry *left, struct hist_entry *right)
+{
+ struct c2c_hist_entry *c2c_left;
+ struct c2c_hist_entry *c2c_right;
+ uint64_t tot_recs_left;
+ uint64_t tot_recs_right;
+
+ c2c_left = container_of(left, struct c2c_hist_entry, he);
+ c2c_right = container_of(right, struct c2c_hist_entry, he);
+
+ tot_recs_left = total_loads(&c2c_left->stats);
+ tot_recs_right = total_loads(&c2c_right->stats);
+
+ return tot_recs_left - tot_recs_right;
+}
+
#define HEADER_LOW(__h) \
{ \
.line[1] = { \
@@ -709,6 +760,14 @@ static struct c2c_dimension dim_tot_recs = {
.width = 7,
};
+static struct c2c_dimension dim_tot_loads = {
+ .header = HEADER_BOTH("Total", "Loads"),
+ .name = "tot_loads",
+ .cmp = tot_loads_cmp,
+ .entry = tot_loads_entry,
+ .width = 7,
+};
+
static struct c2c_dimension *dimensions[] = {
&dim_dcacheline,
&dim_offset,
@@ -730,6 +789,7 @@ static struct c2c_dimension *dimensions[] = {
&dim_ld_rmthit,
&dim_ld_llcmiss,
&dim_tot_recs,
+ &dim_tot_loads,
NULL,
};
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 23/52] perf c2c report: Add hitm percent sort key
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (21 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 22/52] perf c2c report: Add total loads " Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 24/52] perf c2c report: Add hitm/store percent related sort keys Arnaldo Carvalho de Melo
` (30 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
It is to be displayed in the main cachelines overall output:
percent_hitm
It displays HITMs percentage for cacheline.
It counts remote HITMs at the moment, but it is changed later to support
local as well, based on the sort configuration.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-czd17qsh5u5z0yc1estz9l2y@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 91 ++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 91 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 2411fe025bc7..dd356d88285c 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -565,6 +565,87 @@ tot_loads_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
return tot_recs_left - tot_recs_right;
}
+typedef double (get_percent_cb)(struct c2c_hist_entry *);
+
+static int
+percent_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+ struct hist_entry *he, get_percent_cb get_percent)
+{
+ struct c2c_hist_entry *c2c_he;
+ int width = c2c_width(fmt, hpp, he->hists);
+ double per;
+
+ c2c_he = container_of(he, struct c2c_hist_entry, he);
+ per = get_percent(c2c_he);
+
+ return hpp_color_scnprintf(hpp, "%*.2f%%", width - 1, per);
+}
+
+static double percent_hitm(struct c2c_hist_entry *c2c_he)
+{
+ struct c2c_hists *hists;
+ struct c2c_stats *stats;
+ struct c2c_stats *total;
+ int tot, st;
+ double p;
+
+ hists = container_of(c2c_he->he.hists, struct c2c_hists, hists);
+ stats = &c2c_he->stats;
+ total = &hists->stats;
+
+ st = stats->rmt_hitm;
+ tot = total->rmt_hitm;
+
+ p = tot ? (double) st / tot : 0;
+
+ return 100 * p;
+}
+
+#define PERC_STR(__s, __v) \
+({ \
+ scnprintf(__s, sizeof(__s), "%.2F%%", __v); \
+ __s; \
+})
+
+static int
+percent_hitm_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+ struct hist_entry *he)
+{
+ struct c2c_hist_entry *c2c_he;
+ int width = c2c_width(fmt, hpp, he->hists);
+ char buf[10];
+ double per;
+
+ c2c_he = container_of(he, struct c2c_hist_entry, he);
+ per = percent_hitm(c2c_he);
+ return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
+}
+
+static int
+percent_hitm_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+ struct hist_entry *he)
+{
+ return percent_color(fmt, hpp, he, percent_hitm);
+}
+
+static int64_t
+percent_hitm_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
+ struct hist_entry *left, struct hist_entry *right)
+{
+ struct c2c_hist_entry *c2c_left;
+ struct c2c_hist_entry *c2c_right;
+ double per_left;
+ double per_right;
+
+ c2c_left = container_of(left, struct c2c_hist_entry, he);
+ c2c_right = container_of(right, struct c2c_hist_entry, he);
+
+ per_left = percent_hitm(c2c_left);
+ per_right = percent_hitm(c2c_right);
+
+ return per_left - per_right;
+}
+
#define HEADER_LOW(__h) \
{ \
.line[1] = { \
@@ -768,6 +849,15 @@ static struct c2c_dimension dim_tot_loads = {
.width = 7,
};
+static struct c2c_dimension dim_percent_hitm = {
+ .header = HEADER_LOW("%hitm"),
+ .name = "percent_hitm",
+ .cmp = percent_hitm_cmp,
+ .entry = percent_hitm_entry,
+ .color = percent_hitm_color,
+ .width = 7,
+};
+
static struct c2c_dimension *dimensions[] = {
&dim_dcacheline,
&dim_offset,
@@ -790,6 +880,7 @@ static struct c2c_dimension *dimensions[] = {
&dim_ld_llcmiss,
&dim_tot_recs,
&dim_tot_loads,
+ &dim_percent_hitm,
NULL,
};
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 24/52] perf c2c report: Add hitm/store percent related sort keys
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (22 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 23/52] perf c2c report: Add hitm percent " Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 25/52] perf c2c report: Add dram " Arnaldo Carvalho de Melo
` (29 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
They are to be displayed in the single cacheline output:
percent_rmt_hitm, percent_lcl_hitm, percent_stores_l1hit, percent_stores_l1miss
They display percentage of HITMs/stores for specific offset in the
cacheline.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-t365aosxtdut8sgrgn8mfoe4@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 202 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 202 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index dd356d88285c..bf4859fecc19 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -646,6 +646,167 @@ percent_hitm_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
return per_left - per_right;
}
+static struct c2c_stats *he_stats(struct hist_entry *he)
+{
+ struct c2c_hist_entry *c2c_he;
+
+ c2c_he = container_of(he, struct c2c_hist_entry, he);
+ return &c2c_he->stats;
+}
+
+static struct c2c_stats *total_stats(struct hist_entry *he)
+{
+ struct c2c_hists *hists;
+
+ hists = container_of(he->hists, struct c2c_hists, hists);
+ return &hists->stats;
+}
+
+static double percent(int st, int tot)
+{
+ return tot ? 100. * (double) st / (double) tot : 0;
+}
+
+#define PERCENT(__h, __f) percent(he_stats(__h)->__f, total_stats(__h)->__f)
+
+#define PERCENT_FN(__f) \
+static double percent_ ## __f(struct c2c_hist_entry *c2c_he) \
+{ \
+ struct c2c_hists *hists; \
+ \
+ hists = container_of(c2c_he->he.hists, struct c2c_hists, hists); \
+ return percent(c2c_he->stats.__f, hists->stats.__f); \
+}
+
+PERCENT_FN(rmt_hitm)
+PERCENT_FN(lcl_hitm)
+PERCENT_FN(st_l1hit)
+PERCENT_FN(st_l1miss)
+
+static int
+percent_rmt_hitm_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+ struct hist_entry *he)
+{
+ int width = c2c_width(fmt, hpp, he->hists);
+ double per = PERCENT(he, rmt_hitm);
+ char buf[10];
+
+ return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
+}
+
+static int
+percent_rmt_hitm_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+ struct hist_entry *he)
+{
+ return percent_color(fmt, hpp, he, percent_rmt_hitm);
+}
+
+static int64_t
+percent_rmt_hitm_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
+ struct hist_entry *left, struct hist_entry *right)
+{
+ double per_left;
+ double per_right;
+
+ per_left = PERCENT(left, lcl_hitm);
+ per_right = PERCENT(right, lcl_hitm);
+
+ return per_left - per_right;
+}
+
+static int
+percent_lcl_hitm_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+ struct hist_entry *he)
+{
+ int width = c2c_width(fmt, hpp, he->hists);
+ double per = PERCENT(he, lcl_hitm);
+ char buf[10];
+
+ return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
+}
+
+static int
+percent_lcl_hitm_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+ struct hist_entry *he)
+{
+ return percent_color(fmt, hpp, he, percent_lcl_hitm);
+}
+
+static int64_t
+percent_lcl_hitm_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
+ struct hist_entry *left, struct hist_entry *right)
+{
+ double per_left;
+ double per_right;
+
+ per_left = PERCENT(left, lcl_hitm);
+ per_right = PERCENT(right, lcl_hitm);
+
+ return per_left - per_right;
+}
+
+static int
+percent_stores_l1hit_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+ struct hist_entry *he)
+{
+ int width = c2c_width(fmt, hpp, he->hists);
+ double per = PERCENT(he, st_l1hit);
+ char buf[10];
+
+ return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
+}
+
+static int
+percent_stores_l1hit_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+ struct hist_entry *he)
+{
+ return percent_color(fmt, hpp, he, percent_st_l1hit);
+}
+
+static int64_t
+percent_stores_l1hit_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
+ struct hist_entry *left, struct hist_entry *right)
+{
+ double per_left;
+ double per_right;
+
+ per_left = PERCENT(left, st_l1hit);
+ per_right = PERCENT(right, st_l1hit);
+
+ return per_left - per_right;
+}
+
+static int
+percent_stores_l1miss_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+ struct hist_entry *he)
+{
+ int width = c2c_width(fmt, hpp, he->hists);
+ double per = PERCENT(he, st_l1miss);
+ char buf[10];
+
+ return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
+}
+
+static int
+percent_stores_l1miss_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+ struct hist_entry *he)
+{
+ return percent_color(fmt, hpp, he, percent_st_l1miss);
+}
+
+static int64_t
+percent_stores_l1miss_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
+ struct hist_entry *left, struct hist_entry *right)
+{
+ double per_left;
+ double per_right;
+
+ per_left = PERCENT(left, st_l1miss);
+ per_right = PERCENT(right, st_l1miss);
+
+ return per_left - per_right;
+}
+
#define HEADER_LOW(__h) \
{ \
.line[1] = { \
@@ -858,6 +1019,42 @@ static struct c2c_dimension dim_percent_hitm = {
.width = 7,
};
+static struct c2c_dimension dim_percent_rmt_hitm = {
+ .header = HEADER_SPAN("----- HITM -----", "Rmt", 1),
+ .name = "percent_rmt_hitm",
+ .cmp = percent_rmt_hitm_cmp,
+ .entry = percent_rmt_hitm_entry,
+ .color = percent_rmt_hitm_color,
+ .width = 7,
+};
+
+static struct c2c_dimension dim_percent_lcl_hitm = {
+ .header = HEADER_SPAN_LOW("Lcl"),
+ .name = "percent_lcl_hitm",
+ .cmp = percent_lcl_hitm_cmp,
+ .entry = percent_lcl_hitm_entry,
+ .color = percent_lcl_hitm_color,
+ .width = 7,
+};
+
+static struct c2c_dimension dim_percent_stores_l1hit = {
+ .header = HEADER_SPAN("-- Store Refs --", "L1 Hit", 1),
+ .name = "percent_stores_l1hit",
+ .cmp = percent_stores_l1hit_cmp,
+ .entry = percent_stores_l1hit_entry,
+ .color = percent_stores_l1hit_color,
+ .width = 7,
+};
+
+static struct c2c_dimension dim_percent_stores_l1miss = {
+ .header = HEADER_SPAN_LOW("L1 Miss"),
+ .name = "percent_stores_l1miss",
+ .cmp = percent_stores_l1miss_cmp,
+ .entry = percent_stores_l1miss_entry,
+ .color = percent_stores_l1miss_color,
+ .width = 7,
+};
+
static struct c2c_dimension *dimensions[] = {
&dim_dcacheline,
&dim_offset,
@@ -881,6 +1078,10 @@ static struct c2c_dimension *dimensions[] = {
&dim_tot_recs,
&dim_tot_loads,
&dim_percent_hitm,
+ &dim_percent_rmt_hitm,
+ &dim_percent_lcl_hitm,
+ &dim_percent_stores_l1hit,
+ &dim_percent_stores_l1miss,
NULL,
};
@@ -968,6 +1169,7 @@ static struct c2c_fmt *get_format(const char *name)
fmt->cmp = dim->se ? c2c_se_cmp : dim->cmp;
fmt->sort = dim->se ? c2c_se_cmp : dim->cmp;
+ fmt->color = dim->se ? NULL : dim->color;
fmt->entry = dim->se ? c2c_se_entry : dim->entry;
fmt->header = c2c_header;
fmt->width = c2c_width;
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 25/52] perf c2c report: Add dram related sort keys
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (23 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 24/52] perf c2c report: Add hitm/store percent related sort keys Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 26/52] perf c2c report: Add 'pid' sort key Arnaldo Carvalho de Melo
` (28 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
They are to be displayed in the main cachelines overall output:
dram_lcl, dram_rmt
They display DRAM rmt/lcl access numbers for specific cacheline.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-tl3qqi9ehk6g1fla4z7y0ykd@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index bf4859fecc19..c718d8b553ce 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -807,6 +807,9 @@ percent_stores_l1miss_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
return per_left - per_right;
}
+STAT_FN(lcl_dram)
+STAT_FN(rmt_dram)
+
#define HEADER_LOW(__h) \
{ \
.line[1] = { \
@@ -1055,6 +1058,22 @@ static struct c2c_dimension dim_percent_stores_l1miss = {
.width = 7,
};
+static struct c2c_dimension dim_dram_lcl = {
+ .header = HEADER_SPAN("--- Load Dram ----", "Lcl", 1),
+ .name = "dram_lcl",
+ .cmp = lcl_dram_cmp,
+ .entry = lcl_dram_entry,
+ .width = 8,
+};
+
+static struct c2c_dimension dim_dram_rmt = {
+ .header = HEADER_SPAN_LOW("Rmt"),
+ .name = "dram_rmt",
+ .cmp = rmt_dram_cmp,
+ .entry = rmt_dram_entry,
+ .width = 8,
+};
+
static struct c2c_dimension *dimensions[] = {
&dim_dcacheline,
&dim_offset,
@@ -1082,6 +1101,8 @@ static struct c2c_dimension *dimensions[] = {
&dim_percent_lcl_hitm,
&dim_percent_stores_l1hit,
&dim_percent_stores_l1miss,
+ &dim_dram_lcl,
+ &dim_dram_rmt,
NULL,
};
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 26/52] perf c2c report: Add 'pid' sort key
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (24 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 25/52] perf c2c report: Add dram " Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 27/52] perf c2c report: Add 'tid' " Arnaldo Carvalho de Melo
` (27 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
It is to be displayed in the single cacheline output:
pid
We currently don't have a single 'pid' sort/display entry, which would
output just pid number, hence adding it into c2c code.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-3o23qrspxc99b04ci1swlzr6@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index c718d8b553ce..4795713ad211 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -810,6 +810,22 @@ percent_stores_l1miss_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
STAT_FN(lcl_dram)
STAT_FN(rmt_dram)
+static int
+pid_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+ struct hist_entry *he)
+{
+ int width = c2c_width(fmt, hpp, he->hists);
+
+ return scnprintf(hpp->buf, hpp->size, "%*d", width, he->thread->pid_);
+}
+
+static int64_t
+pid_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
+ struct hist_entry *left, struct hist_entry *right)
+{
+ return left->thread->pid_ - right->thread->pid_;
+}
+
#define HEADER_LOW(__h) \
{ \
.line[1] = { \
@@ -1074,6 +1090,14 @@ static struct c2c_dimension dim_dram_rmt = {
.width = 8,
};
+static struct c2c_dimension dim_pid = {
+ .header = HEADER_LOW("Pid"),
+ .name = "pid",
+ .cmp = pid_cmp,
+ .entry = pid_entry,
+ .width = 7,
+};
+
static struct c2c_dimension *dimensions[] = {
&dim_dcacheline,
&dim_offset,
@@ -1103,6 +1127,7 @@ static struct c2c_dimension *dimensions[] = {
&dim_percent_stores_l1miss,
&dim_dram_lcl,
&dim_dram_rmt,
+ &dim_pid,
NULL,
};
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 27/52] perf c2c report: Add 'tid' sort key
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (25 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 26/52] perf c2c report: Add 'pid' sort key Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 28/52] perf c2c report: Add 'symbol' and 'dso' sort keys Arnaldo Carvalho de Melo
` (26 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
It is to be displayed in the single cacheline output:
tid
It's a wrapper for global sort_thread sort entry with c2c specific
header.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-fr0socae5skzvz5qbkl85prn@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 4795713ad211..77810a30a4cc 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -1098,6 +1098,12 @@ static struct c2c_dimension dim_pid = {
.width = 7,
};
+static struct c2c_dimension dim_tid = {
+ .header = HEADER_LOW("Tid"),
+ .name = "tid",
+ .se = &sort_thread,
+};
+
static struct c2c_dimension *dimensions[] = {
&dim_dcacheline,
&dim_offset,
@@ -1128,6 +1134,7 @@ static struct c2c_dimension *dimensions[] = {
&dim_dram_lcl,
&dim_dram_rmt,
&dim_pid,
+ &dim_tid,
NULL,
};
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 28/52] perf c2c report: Add 'symbol' and 'dso' sort keys
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (26 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 27/52] perf c2c report: Add 'tid' " Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 29/52] perf c2c report: Add 'node' sort key Arnaldo Carvalho de Melo
` (25 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
They are to be displayed in the single cacheline output:
symbol, dso
They are wrappers for global sort_sym and sort_dso sort entries with c2c
specific headers.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-6742e6g0r7n63y5wc4rrgxx5@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 77810a30a4cc..ffd41744886e 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -1104,6 +1104,17 @@ static struct c2c_dimension dim_tid = {
.se = &sort_thread,
};
+static struct c2c_dimension dim_symbol = {
+ .name = "symbol",
+ .se = &sort_sym,
+};
+
+static struct c2c_dimension dim_dso = {
+ .header = HEADER_BOTH("Shared", "Object"),
+ .name = "dso",
+ .se = &sort_dso,
+};
+
static struct c2c_dimension *dimensions[] = {
&dim_dcacheline,
&dim_offset,
@@ -1135,6 +1146,8 @@ static struct c2c_dimension *dimensions[] = {
&dim_dram_rmt,
&dim_pid,
&dim_tid,
+ &dim_symbol,
+ &dim_dso,
NULL,
};
@@ -1249,12 +1262,17 @@ static int c2c_hists__init_output(struct perf_hpp_list *hpp_list, char *name)
static int c2c_hists__init_sort(struct perf_hpp_list *hpp_list, char *name)
{
struct c2c_fmt *c2c_fmt = get_format(name);
+ struct c2c_dimension *dim;
if (!c2c_fmt) {
reset_dimensions();
return sort_dimension__add(hpp_list, name, NULL, 0);
}
+ dim = c2c_fmt->dim;
+ if (dim == &dim_dso)
+ hpp_list->dso = 1;
+
perf_hpp_list__register_sort_field(hpp_list, &c2c_fmt->fmt);
return 0;
}
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 29/52] perf c2c report: Add 'node' sort key
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (27 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 28/52] perf c2c report: Add 'symbol' and 'dso' sort keys Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 30/52] perf c2c report: Add stats related sort keys Arnaldo Carvalho de Melo
` (24 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
It is to be displayed in the single cacheline output:
node
It displays nodes hits related to cacheline accesses.
The node filed comes in 3 flavors:
- node IDs separated by ','
- node IDs with stats for each ID, in following format:
Node{cpus %hitms %stores}
- node IDs with list of affected CPUs in following format:
Node{cpu list}
User can switch the flavor with -N option (-NN,-NNN).
It will be available in TUI to switch this with 'n' key.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-6742e6g0r7n63y5wc4rrgxx5@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 219 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 219 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index ffd41744886e..ca2f37479e6d 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -1,6 +1,7 @@
#include <linux/compiler.h>
#include <linux/kernel.h>
#include <linux/stringify.h>
+#include <asm/bug.h>
#include "util.h"
#include "debug.h"
#include "builtin.h"
@@ -22,6 +23,8 @@ struct c2c_hists {
struct c2c_hist_entry {
struct c2c_hists *hists;
struct c2c_stats stats;
+ unsigned long *cpuset;
+ struct c2c_stats *node_stats;
/*
* must be at the end,
* because of its callchain dynamic entry
@@ -32,6 +35,12 @@ struct c2c_hist_entry {
struct perf_c2c {
struct perf_tool tool;
struct c2c_hists hists;
+
+ unsigned long **nodes;
+ int nodes_cnt;
+ int cpus_cnt;
+ int *cpu2node;
+ int node_info;
};
static struct perf_c2c c2c;
@@ -44,6 +53,14 @@ static void *c2c_he_zalloc(size_t size)
if (!c2c_he)
return NULL;
+ c2c_he->cpuset = bitmap_alloc(c2c.cpus_cnt);
+ if (!c2c_he->cpuset)
+ return NULL;
+
+ c2c_he->node_stats = zalloc(c2c.nodes_cnt * sizeof(*c2c_he->node_stats));
+ if (!c2c_he->node_stats)
+ return NULL;
+
return &c2c_he->he;
}
@@ -57,6 +74,8 @@ static void c2c_he_free(void *he)
free(c2c_he->hists);
}
+ free(c2c_he->cpuset);
+ free(c2c_he->node_stats);
free(c2c_he);
}
@@ -93,6 +112,16 @@ he__get_c2c_hists(struct hist_entry *he,
return hists;
}
+static void c2c_he__set_cpu(struct c2c_hist_entry *c2c_he,
+ struct perf_sample *sample)
+{
+ if (WARN_ONCE(sample->cpu == (unsigned int) -1,
+ "WARNING: no sample cpu value"))
+ return;
+
+ set_bit(sample->cpu, c2c_he->cpuset);
+}
+
static int process_sample_event(struct perf_tool *tool __maybe_unused,
union perf_event *event,
struct perf_sample *sample,
@@ -133,10 +162,23 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused,
c2c_add_stats(&c2c_he->stats, &stats);
c2c_add_stats(&c2c_hists->stats, &stats);
+ c2c_he__set_cpu(c2c_he, sample);
+
hists__inc_nr_samples(&c2c_hists->hists, he->filtered);
ret = hist_entry__append_callchain(he, sample);
if (!ret) {
+ /*
+ * There's already been warning about missing
+ * sample's cpu value. Let's account all to
+ * node 0 in this case, without any further
+ * warning.
+ *
+ * Doing node stats only for single callchain data.
+ */
+ int cpu = sample->cpu == (unsigned int) -1 ? 0 : sample->cpu;
+ int node = c2c.cpu2node[cpu];
+
mi = mi_dup;
mi_dup = memdup(mi, sizeof(*mi));
@@ -156,6 +198,9 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused,
c2c_he = container_of(he, struct c2c_hist_entry, he);
c2c_add_stats(&c2c_he->stats, &stats);
c2c_add_stats(&c2c_hists->stats, &stats);
+ c2c_add_stats(&c2c_he->node_stats[node], &stats);
+
+ c2c_he__set_cpu(c2c_he, sample);
hists__inc_nr_samples(&c2c_hists->hists, he->filtered);
ret = hist_entry__append_callchain(he, sample);
@@ -826,6 +871,97 @@ pid_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
return left->thread->pid_ - right->thread->pid_;
}
+static int64_t
+empty_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
+ struct hist_entry *left __maybe_unused,
+ struct hist_entry *right __maybe_unused)
+{
+ return 0;
+}
+
+static int
+node_entry(struct perf_hpp_fmt *fmt __maybe_unused, struct perf_hpp *hpp,
+ struct hist_entry *he)
+{
+ struct c2c_hist_entry *c2c_he;
+ bool first = true;
+ int node;
+ int ret = 0;
+
+ c2c_he = container_of(he, struct c2c_hist_entry, he);
+
+ for (node = 0; node < c2c.nodes_cnt; node++) {
+ DECLARE_BITMAP(set, c2c.cpus_cnt);
+
+ bitmap_zero(set, c2c.cpus_cnt);
+ bitmap_and(set, c2c_he->cpuset, c2c.nodes[node], c2c.cpus_cnt);
+
+ if (!bitmap_weight(set, c2c.cpus_cnt)) {
+ if (c2c.node_info == 1) {
+ ret = scnprintf(hpp->buf, hpp->size, "%21s", " ");
+ advance_hpp(hpp, ret);
+ }
+ continue;
+ }
+
+ if (!first) {
+ ret = scnprintf(hpp->buf, hpp->size, " ");
+ advance_hpp(hpp, ret);
+ }
+
+ switch (c2c.node_info) {
+ case 0:
+ ret = scnprintf(hpp->buf, hpp->size, "%2d", node);
+ advance_hpp(hpp, ret);
+ break;
+ case 1:
+ {
+ int num = bitmap_weight(c2c_he->cpuset, c2c.cpus_cnt);
+ struct c2c_stats *stats = &c2c_he->node_stats[node];
+
+ ret = scnprintf(hpp->buf, hpp->size, "%2d{%2d ", node, num);
+ advance_hpp(hpp, ret);
+
+
+ if (c2c_he->stats.rmt_hitm > 0) {
+ ret = scnprintf(hpp->buf, hpp->size, "%5.1f%% ",
+ percent(stats->rmt_hitm, c2c_he->stats.rmt_hitm));
+ } else {
+ ret = scnprintf(hpp->buf, hpp->size, "%6s ", "n/a");
+ }
+
+ advance_hpp(hpp, ret);
+
+ if (c2c_he->stats.store > 0) {
+ ret = scnprintf(hpp->buf, hpp->size, "%5.1f%%}",
+ percent(stats->store, c2c_he->stats.store));
+ } else {
+ ret = scnprintf(hpp->buf, hpp->size, "%6s}", "n/a");
+ }
+
+ advance_hpp(hpp, ret);
+ break;
+ }
+ case 2:
+ ret = scnprintf(hpp->buf, hpp->size, "%2d{", node);
+ advance_hpp(hpp, ret);
+
+ ret = bitmap_scnprintf(set, c2c.cpus_cnt, hpp->buf, hpp->size);
+ advance_hpp(hpp, ret);
+
+ ret = scnprintf(hpp->buf, hpp->size, "}");
+ advance_hpp(hpp, ret);
+ break;
+ default:
+ break;
+ }
+
+ first = false;
+ }
+
+ return 0;
+}
+
#define HEADER_LOW(__h) \
{ \
.line[1] = { \
@@ -1115,6 +1251,19 @@ static struct c2c_dimension dim_dso = {
.se = &sort_dso,
};
+static struct c2c_header header_node[3] = {
+ HEADER_LOW("Node"),
+ HEADER_LOW("Node{cpus %hitms %stores}"),
+ HEADER_LOW("Node{cpu list}"),
+};
+
+static struct c2c_dimension dim_node = {
+ .name = "node",
+ .cmp = empty_cmp,
+ .entry = node_entry,
+ .width = 4,
+};
+
static struct c2c_dimension *dimensions[] = {
&dim_dcacheline,
&dim_offset,
@@ -1148,6 +1297,7 @@ static struct c2c_dimension *dimensions[] = {
&dim_tid,
&dim_symbol,
&dim_dso,
+ &dim_node,
NULL,
};
@@ -1374,6 +1524,68 @@ static int resort_cl_cb(struct hist_entry *he)
return 0;
}
+static void setup_nodes_header(void)
+{
+ dim_node.header = header_node[c2c.node_info];
+}
+
+static int setup_nodes(struct perf_session *session)
+{
+ struct numa_node *n;
+ unsigned long **nodes;
+ int node, cpu;
+ int *cpu2node;
+
+ if (c2c.node_info > 2)
+ c2c.node_info = 2;
+
+ c2c.nodes_cnt = session->header.env.nr_numa_nodes;
+ c2c.cpus_cnt = session->header.env.nr_cpus_online;
+
+ n = session->header.env.numa_nodes;
+ if (!n)
+ return -EINVAL;
+
+ nodes = zalloc(sizeof(unsigned long *) * c2c.nodes_cnt);
+ if (!nodes)
+ return -ENOMEM;
+
+ c2c.nodes = nodes;
+
+ cpu2node = zalloc(sizeof(int) * c2c.cpus_cnt);
+ if (!cpu2node)
+ return -ENOMEM;
+
+ for (cpu = 0; cpu < c2c.cpus_cnt; cpu++)
+ cpu2node[cpu] = -1;
+
+ c2c.cpu2node = cpu2node;
+
+ for (node = 0; node < c2c.nodes_cnt; node++) {
+ struct cpu_map *map = n[node].map;
+ unsigned long *set;
+
+ set = bitmap_alloc(c2c.cpus_cnt);
+ if (!set)
+ return -ENOMEM;
+
+ for (cpu = 0; cpu < map->nr; cpu++) {
+ set_bit(map->map[cpu], set);
+
+ if (WARN_ONCE(cpu2node[map->map[cpu]] != -1, "node/cpu topology bug"))
+ return -EINVAL;
+
+ cpu2node[map->map[cpu]] = node;
+ }
+
+ nodes[node] = set;
+ }
+
+ setup_nodes_header();
+ return 0;
+}
+
+
static int perf_c2c__report(int argc, const char **argv)
{
struct perf_session *session;
@@ -1388,6 +1600,8 @@ static int perf_c2c__report(int argc, const char **argv)
"be more verbose (show counter open errors, etc)"),
OPT_STRING('i', "input", &input_name, "file",
"the input file to process"),
+ OPT_INCR('N', "node-info", &c2c.node_info,
+ "show extra node info in report (repeat for more info)"),
OPT_END()
};
int err = 0;
@@ -1413,6 +1627,11 @@ static int perf_c2c__report(int argc, const char **argv)
pr_debug("No memory for session\n");
goto out;
}
+ err = setup_nodes(session);
+ if (err) {
+ pr_err("Failed setup nodes\n");
+ goto out;
+ }
if (symbol__init(&session->header.env) < 0)
goto out_session;
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 30/52] perf c2c report: Add stats related sort keys
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (28 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 29/52] perf c2c report: Add 'node' sort key Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 31/52] perf c2c report: Add 'cpucnt' sort key Arnaldo Carvalho de Melo
` (23 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
It is to be displayed in the single cacheline output:
median, mean_rmt, mean_lcl, mean_load, stddev
It displays statistics hits related to cacheline accesses.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-m1r4uc9lcykf1jhpvwk2gkj8@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 80 ++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 80 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index ca2f37479e6d..043344a720bf 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -20,11 +20,20 @@ struct c2c_hists {
struct c2c_stats stats;
};
+struct compute_stats {
+ struct stats lcl_hitm;
+ struct stats rmt_hitm;
+ struct stats load;
+};
+
struct c2c_hist_entry {
struct c2c_hists *hists;
struct c2c_stats stats;
unsigned long *cpuset;
struct c2c_stats *node_stats;
+
+ struct compute_stats cstats;
+
/*
* must be at the end,
* because of its callchain dynamic entry
@@ -61,6 +70,10 @@ static void *c2c_he_zalloc(size_t size)
if (!c2c_he->node_stats)
return NULL;
+ init_stats(&c2c_he->cstats.lcl_hitm);
+ init_stats(&c2c_he->cstats.rmt_hitm);
+ init_stats(&c2c_he->cstats.load);
+
return &c2c_he->he;
}
@@ -122,6 +135,20 @@ static void c2c_he__set_cpu(struct c2c_hist_entry *c2c_he,
set_bit(sample->cpu, c2c_he->cpuset);
}
+static void compute_stats(struct c2c_hist_entry *c2c_he,
+ struct c2c_stats *stats,
+ u64 weight)
+{
+ struct compute_stats *cstats = &c2c_he->cstats;
+
+ if (stats->rmt_hitm)
+ update_stats(&cstats->rmt_hitm, weight);
+ else if (stats->lcl_hitm)
+ update_stats(&cstats->lcl_hitm, weight);
+ else if (stats->load)
+ update_stats(&cstats->load, weight);
+}
+
static int process_sample_event(struct perf_tool *tool __maybe_unused,
union perf_event *event,
struct perf_sample *sample,
@@ -200,6 +227,8 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused,
c2c_add_stats(&c2c_hists->stats, &stats);
c2c_add_stats(&c2c_he->node_stats[node], &stats);
+ compute_stats(c2c_he, &stats, sample->weight);
+
c2c_he__set_cpu(c2c_he, sample);
hists__inc_nr_samples(&c2c_hists->hists, he->filtered);
@@ -962,6 +991,30 @@ node_entry(struct perf_hpp_fmt *fmt __maybe_unused, struct perf_hpp *hpp,
return 0;
}
+static int
+mean_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+ struct hist_entry *he, double mean)
+{
+ int width = c2c_width(fmt, hpp, he->hists);
+ char buf[10];
+
+ scnprintf(buf, 10, "%6.0f", mean);
+ return scnprintf(hpp->buf, hpp->size, "%*s", width, buf);
+}
+
+#define MEAN_ENTRY(__func, __val) \
+static int \
+__func(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, struct hist_entry *he) \
+{ \
+ struct c2c_hist_entry *c2c_he; \
+ c2c_he = container_of(he, struct c2c_hist_entry, he); \
+ return mean_entry(fmt, hpp, he, avg_stats(&c2c_he->cstats.__val)); \
+}
+
+MEAN_ENTRY(mean_rmt_entry, rmt_hitm);
+MEAN_ENTRY(mean_lcl_entry, lcl_hitm);
+MEAN_ENTRY(mean_load_entry, load);
+
#define HEADER_LOW(__h) \
{ \
.line[1] = { \
@@ -1264,6 +1317,30 @@ static struct c2c_dimension dim_node = {
.width = 4,
};
+static struct c2c_dimension dim_mean_rmt = {
+ .header = HEADER_SPAN("---------- cycles ----------", "rmt hitm", 2),
+ .name = "mean_rmt",
+ .cmp = empty_cmp,
+ .entry = mean_rmt_entry,
+ .width = 8,
+};
+
+static struct c2c_dimension dim_mean_lcl = {
+ .header = HEADER_SPAN_LOW("lcl hitm"),
+ .name = "mean_lcl",
+ .cmp = empty_cmp,
+ .entry = mean_lcl_entry,
+ .width = 8,
+};
+
+static struct c2c_dimension dim_mean_load = {
+ .header = HEADER_SPAN_LOW("load"),
+ .name = "mean_load",
+ .cmp = empty_cmp,
+ .entry = mean_load_entry,
+ .width = 8,
+};
+
static struct c2c_dimension *dimensions[] = {
&dim_dcacheline,
&dim_offset,
@@ -1298,6 +1375,9 @@ static struct c2c_dimension *dimensions[] = {
&dim_symbol,
&dim_dso,
&dim_node,
+ &dim_mean_rmt,
+ &dim_mean_lcl,
+ &dim_mean_load,
NULL,
};
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 31/52] perf c2c report: Add 'cpucnt' sort key
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (29 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 30/52] perf c2c report: Add stats related sort keys Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 32/52] perf c2c report: Add src line " Arnaldo Carvalho de Melo
` (22 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
It is to be displayed in the single cacheline output:
cpucnt
It displays number of distinct cpus that hit cacheline.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-ib2kdwam52fby9u2k3ij6lhm@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 043344a720bf..2a1e883580a1 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -1015,6 +1015,20 @@ MEAN_ENTRY(mean_rmt_entry, rmt_hitm);
MEAN_ENTRY(mean_lcl_entry, lcl_hitm);
MEAN_ENTRY(mean_load_entry, load);
+static int
+cpucnt_entry(struct perf_hpp_fmt *fmt __maybe_unused, struct perf_hpp *hpp,
+ struct hist_entry *he)
+{
+ struct c2c_hist_entry *c2c_he;
+ int width = c2c_width(fmt, hpp, he->hists);
+ char buf[10];
+
+ c2c_he = container_of(he, struct c2c_hist_entry, he);
+
+ scnprintf(buf, 10, "%d", bitmap_weight(c2c_he->cpuset, c2c.cpus_cnt));
+ return scnprintf(hpp->buf, hpp->size, "%*s", width, buf);
+}
+
#define HEADER_LOW(__h) \
{ \
.line[1] = { \
@@ -1341,6 +1355,14 @@ static struct c2c_dimension dim_mean_load = {
.width = 8,
};
+static struct c2c_dimension dim_cpucnt = {
+ .header = HEADER_BOTH("cpu", "cnt"),
+ .name = "cpucnt",
+ .cmp = empty_cmp,
+ .entry = cpucnt_entry,
+ .width = 8,
+};
+
static struct c2c_dimension *dimensions[] = {
&dim_dcacheline,
&dim_offset,
@@ -1378,6 +1400,7 @@ static struct c2c_dimension *dimensions[] = {
&dim_mean_rmt,
&dim_mean_lcl,
&dim_mean_load,
+ &dim_cpucnt,
NULL,
};
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 32/52] perf c2c report: Add src line sort key
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (30 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 31/52] perf c2c report: Add 'cpucnt' sort key Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 33/52] perf c2c report: Setup number of header lines for hists Arnaldo Carvalho de Melo
` (21 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
It is to be displayed in the single cacheline output:
cl_srcline
It displays source line related to the code address that accessed
cacheline. It's a wrapper to global srcline sort entry.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-cmnzgm37mjz56ozsg4mnbgxq@git.kernel.org
[ Remove __maybe_unused from now used 'he' parameter in filter_cb() ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 13 ++++++++++++-
tools/perf/util/sort.c | 2 +-
tools/perf/util/sort.h | 1 +
3 files changed, 14 insertions(+), 2 deletions(-)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 2a1e883580a1..0f898d3ff84c 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -50,6 +50,8 @@ struct perf_c2c {
int cpus_cnt;
int *cpu2node;
int node_info;
+
+ bool show_src;
};
static struct perf_c2c c2c;
@@ -1363,6 +1365,11 @@ static struct c2c_dimension dim_cpucnt = {
.width = 8,
};
+static struct c2c_dimension dim_srcline = {
+ .name = "cl_srcline",
+ .se = &sort_srcline,
+};
+
static struct c2c_dimension *dimensions[] = {
&dim_dcacheline,
&dim_offset,
@@ -1401,6 +1408,7 @@ static struct c2c_dimension *dimensions[] = {
&dim_mean_lcl,
&dim_mean_load,
&dim_cpucnt,
+ &dim_srcline,
NULL,
};
@@ -1606,8 +1614,11 @@ static int c2c_hists__reinit(struct c2c_hists *c2c_hists,
return hpp_list__parse(&c2c_hists->list, output, sort);
}
-static int filter_cb(struct hist_entry *he __maybe_unused)
+static int filter_cb(struct hist_entry *he)
{
+ if (c2c.show_src && !he->srcline)
+ he->srcline = hist_entry__get_srcline(he);
+
return 0;
}
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 452e15a10dd2..df622f4e301e 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -315,7 +315,7 @@ struct sort_entry sort_sym = {
/* --sort srcline */
-static char *hist_entry__get_srcline(struct hist_entry *he)
+char *hist_entry__get_srcline(struct hist_entry *he)
{
struct map *map = he->ms.map;
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index 099c97557d33..7aff317fc7c4 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -280,4 +280,5 @@ int64_t
sort__daddr_cmp(struct hist_entry *left, struct hist_entry *right);
int64_t
sort__dcacheline_cmp(struct hist_entry *left, struct hist_entry *right);
+char *hist_entry__get_srcline(struct hist_entry *he);
#endif /* __PERF_SORT_H */
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 33/52] perf c2c report: Setup number of header lines for hists
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (31 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 32/52] perf c2c report: Add src line " Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 34/52] perf c2c report: Set final resort fields Arnaldo Carvalho de Melo
` (20 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Allow to setup number of header lines for c2c hists objects.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-4ilsf0ulubrd4y96g7tnpwzk@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 18 ++++++++++++------
1 file changed, 12 insertions(+), 6 deletions(-)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 0f898d3ff84c..44a85679a704 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -100,11 +100,13 @@ static struct hist_entry_ops c2c_entry_ops = {
};
static int c2c_hists__init(struct c2c_hists *hists,
- const char *sort);
+ const char *sort,
+ int nr_header_lines);
static struct c2c_hists*
he__get_c2c_hists(struct hist_entry *he,
- const char *sort)
+ const char *sort,
+ int nr_header_lines)
{
struct c2c_hist_entry *c2c_he;
struct c2c_hists *hists;
@@ -118,7 +120,7 @@ he__get_c2c_hists(struct hist_entry *he,
if (!hists)
return NULL;
- ret = c2c_hists__init(hists, sort);
+ ret = c2c_hists__init(hists, sort, nr_header_lines);
if (ret) {
free(hists);
return NULL;
@@ -214,7 +216,7 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused,
if (!mi_dup)
goto free_mi;
- c2c_hists = he__get_c2c_hists(he, "offset");
+ c2c_hists = he__get_c2c_hists(he, "offset", 2);
if (!c2c_hists)
goto free_mi_dup;
@@ -1591,7 +1593,8 @@ static int hpp_list__parse(struct perf_hpp_list *hpp_list,
}
static int c2c_hists__init(struct c2c_hists *hists,
- const char *sort)
+ const char *sort,
+ int nr_header_lines)
{
__hists__init(&hists->hists, &hists->list);
@@ -1602,6 +1605,9 @@ static int c2c_hists__init(struct c2c_hists *hists,
*/
perf_hpp_list__init(&hists->list);
+ /* Overload number of header lines.*/
+ hists->list.nr_header_lines = nr_header_lines;
+
return hpp_list__parse(&hists->list, NULL, sort);
}
@@ -1730,7 +1736,7 @@ static int perf_c2c__report(int argc, const char **argv)
file.path = input_name;
- err = c2c_hists__init(&c2c.hists, "dcacheline");
+ err = c2c_hists__init(&c2c.hists, "dcacheline", 2);
if (err) {
pr_debug("Failed to initialize hists\n");
goto out;
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 34/52] perf c2c report: Set final resort fields
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (32 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 33/52] perf c2c report: Setup number of header lines for hists Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 35/52] perf c2c report: Add stdio output support Arnaldo Carvalho de Melo
` (19 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Set resort/display fields for both cachelines and single cacheline
displays.
Cachelines are sorted on:
rmt_hitm
will be made configurable in following patches.
Following fields are display for cachelines:
dcacheline
tot_recs
percent_hitm
tot_hitm,lcl_hitm,rmt_hitm
stores,stores_l1hit,stores_l1miss
dram_lcl,dram_rmt
ld_llcmiss
tot_loads
ld_fbhit,ld_l1hit,ld_l2hit
ld_lclhit,ld_rmthit
The single cacheline is sort by:
offset,rmt_hitm,lcl_hitm
will be made configurable in following patches.
Following fields are display for each cacheline:
percent_rmt_hitm
percent_lcl_hitm
percent_stores_l1hit
percent_stores_l1miss
offset
pid
tid
mean_rmt
mean_lcl
mean_load
cpucnt
symbol
dso
node
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-0rclftliywdq9qr2sjbugb6b@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 44a85679a704..c271261fcaf1 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -1637,6 +1637,23 @@ static int resort_cl_cb(struct hist_entry *he)
c2c_hists = c2c_he->hists;
if (c2c_hists) {
+ c2c_hists__reinit(c2c_hists,
+ "percent_rmt_hitm,"
+ "percent_lcl_hitm,"
+ "percent_stores_l1hit,"
+ "percent_stores_l1miss,"
+ "offset,"
+ "pid,"
+ "tid,"
+ "mean_rmt,"
+ "mean_lcl,"
+ "mean_load,"
+ "cpucnt,"
+ "symbol,"
+ "dso,"
+ "node",
+ "offset,rmt_hitm,lcl_hitm");
+
hists__collapse_resort(&c2c_hists->hists, NULL);
hists__output_resort_cb(&c2c_hists->hists, NULL, filter_cb);
}
@@ -1768,6 +1785,20 @@ static int perf_c2c__report(int argc, const char **argv)
goto out_session;
}
+ c2c_hists__reinit(&c2c.hists,
+ "dcacheline,"
+ "tot_recs,"
+ "percent_hitm,"
+ "tot_hitm,lcl_hitm,rmt_hitm,"
+ "stores,stores_l1hit,stores_l1miss,"
+ "dram_lcl,dram_rmt,"
+ "ld_llcmiss,"
+ "tot_loads,"
+ "ld_fbhit,ld_l1hit,ld_l2hit,"
+ "ld_lclhit,ld_rmthit",
+ "rmt_hitm"
+ );
+
ui_progress__init(&prog, c2c.hists.hists.nr_entries, "Sorting...");
hists__collapse_resort(&c2c.hists.hists, NULL);
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 35/52] perf c2c report: Add stdio output support
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (33 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 34/52] perf c2c report: Set final resort fields Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 36/52] perf c2c report: Add main TUI browser Arnaldo Carvalho de Melo
` (18 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Adding the --stdio option output support. The output
tables are dumped directly to the stdio.
$ perf c2c report
=================================================
Shared Data Cache Line Table
=================================================
#
# Total ----- LLC Load Hitm ----- ---- Store Reference ---- --- Load Dram ---- LLC Total ----- Core Load Hit ----- -- LLC Load Hit --
# Cacheline records %hitm Total Lcl Rmt Total L1Hit L1Miss Lcl Rmt Ld Miss Loads FB L1 L2 Llc Rmt
# .................. ....... ....... ....... ....... ....... ....... ....... ....... ........ ........ ....... ....... ....... ....... ....... ........ ........
#
0xffff88000235f840 17 0.00% 0 0 0 17 17 0 0 0 0 0 0 0 0 0 0
...
=================================================
Shared Cache Line Distribution Pareto
=================================================
#
# ----- HITM ----- -- Store Refs -- Data address ---------- cycles ---------- cpu Shared
# Rmt Lcl L1 Hit L1 Miss Offset Pid Tid rmt hitm lcl hitm load cnt Symbol Object Node
# ....... ....... ....... ....... .................. ....... ..................... ........ ........ ........ ........ .................... ................. ....
#
------------------------------------------------------
0 0 17 0 0xffff88000235f840
------------------------------------------------------
0.00% 0.00% 5.88% 0.00% 0x0 11474 11474:kworker/u16:5 0 0 0 1 [k] rmap_walk_file [kernel.kallsyms] 0
0.00% 0.00% 5.88% 0.00% 0x10 11474 11474:kworker/u16:5 0 0 0 1 [k] lock_page_memcg [kernel.kallsyms] 0
0.00% 0.00% 11.76% 0.00% 0x20 11474 11474:kworker/u16:5 0 0 0 1 [k] page_mapping [kernel.kallsyms] 0
0.00% 0.00% 64.71% 0.00% 0x28 11474 11474:kworker/u16:5 0 0 0 1 [k] __test_set_page_writeback [kernel.kallsyms] 0
0.00% 0.00% 11.76% 0.00% 0x30 11474 11474:kworker/u16:5 0 0 0 1 [k] page_mapped [kernel.kallsyms] 0
...
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-eorco9r0oeesjve77pkkg43s@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 83 ++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 83 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index c271261fcaf1..33db26c6ca63 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -13,6 +13,7 @@
#include "tool.h"
#include "data.h"
#include "sort.h"
+#include <asm/bug.h>
struct c2c_hists {
struct hists hists;
@@ -1722,6 +1723,85 @@ static int setup_nodes(struct perf_session *session)
return 0;
}
+static void print_cacheline(struct c2c_hists *c2c_hists,
+ struct hist_entry *he_cl,
+ struct perf_hpp_list *hpp_list,
+ FILE *out)
+{
+ char bf[1000];
+ struct perf_hpp hpp = {
+ .buf = bf,
+ .size = 1000,
+ };
+ static bool once;
+
+ if (!once) {
+ hists__fprintf_headers(&c2c_hists->hists, out);
+ once = true;
+ } else {
+ fprintf(out, "\n");
+ }
+
+ fprintf(out, " ------------------------------------------------------\n");
+ __hist_entry__snprintf(he_cl, &hpp, hpp_list);
+ fprintf(out, "%s\n", bf);
+ fprintf(out, " ------------------------------------------------------\n");
+
+ hists__fprintf(&c2c_hists->hists, false, 0, 0, 0, out, true);
+}
+
+static void print_pareto(FILE *out)
+{
+ struct perf_hpp_list hpp_list;
+ struct rb_node *nd;
+ int ret;
+
+ perf_hpp_list__init(&hpp_list);
+ ret = hpp_list__parse(&hpp_list,
+ "cl_rmt_hitm,"
+ "cl_lcl_hitm,"
+ "cl_stores_l1hit,"
+ "cl_stores_l1miss,"
+ "dcacheline",
+ NULL);
+
+ if (WARN_ONCE(ret, "failed to setup sort entries\n"))
+ return;
+
+ nd = rb_first(&c2c.hists.hists.entries);
+
+ for (; nd; nd = rb_next(nd)) {
+ struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node);
+ struct c2c_hist_entry *c2c_he;
+
+ if (he->filtered)
+ continue;
+
+ c2c_he = container_of(he, struct c2c_hist_entry, he);
+ print_cacheline(c2c_he->hists, he, &hpp_list, out);
+ }
+}
+
+static void perf_c2c__hists_fprintf(FILE *out)
+{
+ setup_pager();
+
+ fprintf(out, "\n");
+ fprintf(out, "=================================================\n");
+ fprintf(out, " Shared Data Cache Line Table \n");
+ fprintf(out, "=================================================\n");
+ fprintf(out, "#\n");
+
+ hists__fprintf(&c2c.hists.hists, true, 0, 0, 0, stdout, false);
+
+ fprintf(out, "\n");
+ fprintf(out, "=================================================\n");
+ fprintf(out, " Shared Cache Line Distribution Pareto \n");
+ fprintf(out, "=================================================\n");
+ fprintf(out, "#\n");
+
+ print_pareto(out);
+}
static int perf_c2c__report(int argc, const char **argv)
{
@@ -1806,6 +1886,9 @@ static int perf_c2c__report(int argc, const char **argv)
ui_progress__finish();
+ use_browser = 0;
+ perf_c2c__hists_fprintf(stdout);
+
out_session:
perf_session__delete(session);
out:
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 36/52] perf c2c report: Add main TUI browser
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (34 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 35/52] perf c2c report: Add stdio output support Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 37/52] perf c2c report: Add TUI cacheline browser Arnaldo Carvalho de Melo
` (17 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Add the main cachelines TUI browser. It allows to navigate through
cachelines and display their details and callchains (implemented in the
following patches).
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-inykbom2f19difvsu1e18avr@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 117 ++++++++++++++++++++++++++++++++++++++++-
tools/perf/ui/browsers/hists.c | 2 +-
tools/perf/ui/browsers/hists.h | 1 +
3 files changed, 117 insertions(+), 3 deletions(-)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 33db26c6ca63..c42991664703 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -14,6 +14,7 @@
#include "data.h"
#include "sort.h"
#include <asm/bug.h>
+#include "ui/browsers/hists.h"
struct c2c_hists {
struct hists hists;
@@ -53,6 +54,7 @@ struct perf_c2c {
int node_info;
bool show_src;
+ bool use_stdio;
};
static struct perf_c2c c2c;
@@ -657,6 +659,10 @@ percent_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
c2c_he = container_of(he, struct c2c_hist_entry, he);
per = get_percent(c2c_he);
+#ifdef HAVE_SLANG_SUPPORT
+ if (use_browser)
+ return __hpp__slsmg_color_printf(hpp, "%*.2f%%", width - 1, per);
+#endif
return hpp_color_scnprintf(hpp, "%*.2f%%", width - 1, per);
}
@@ -1077,6 +1083,8 @@ static struct c2c_dimension dim_dcacheline = {
.width = 18,
};
+static struct c2c_header header_offset_tui = HEADER_LOW("Off");
+
static struct c2c_dimension dim_offset = {
.header = HEADER_BOTH("Data address", "Offset"),
.name = "offset",
@@ -1803,6 +1811,100 @@ static void perf_c2c__hists_fprintf(FILE *out)
print_pareto(out);
}
+#ifdef HAVE_SLANG_SUPPORT
+static void c2c_browser__update_nr_entries(struct hist_browser *hb)
+{
+ u64 nr_entries = 0;
+ struct rb_node *nd = rb_first(&hb->hists->entries);
+
+ do {
+ struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node);
+
+ if (!he->filtered)
+ nr_entries++;
+
+ nd = rb_next(nd);
+ } while (nd);
+
+ hb->nr_non_filtered_entries = nr_entries;
+}
+
+static int perf_c2c_browser__title(struct hist_browser *browser,
+ char *bf, size_t size)
+{
+ scnprintf(bf, size,
+ "Shared Data Cache Line Table "
+ "(%lu entries)", browser->nr_non_filtered_entries);
+ return 0;
+}
+
+static struct hist_browser*
+perf_c2c_browser__new(struct hists *hists)
+{
+ struct hist_browser *browser = hist_browser__new(hists);
+
+ if (browser) {
+ browser->title = perf_c2c_browser__title;
+ browser->c2c_filter = true;
+ }
+
+ return browser;
+}
+
+static int perf_c2c__hists_browse(struct hists *hists)
+{
+ struct hist_browser *browser;
+ int key = -1;
+
+ browser = perf_c2c_browser__new(hists);
+ if (browser == NULL)
+ return -1;
+
+ /* reset abort key so that it can get Ctrl-C as a key */
+ SLang_reset_tty();
+ SLang_init_tty(0, 0, 0);
+
+ c2c_browser__update_nr_entries(browser);
+
+ while (1) {
+ key = hist_browser__run(browser, "help");
+
+ switch (key) {
+ case 'q':
+ goto out;
+ default:
+ break;
+ }
+ }
+
+out:
+ hist_browser__delete(browser);
+ return 0;
+}
+
+static void perf_c2c_display(void)
+{
+ if (c2c.use_stdio)
+ perf_c2c__hists_fprintf(stdout);
+ else
+ perf_c2c__hists_browse(&c2c.hists.hists);
+}
+#else
+static void perf_c2c_display(void)
+{
+ use_browser = 0;
+ perf_c2c__hists_fprintf(stdout);
+}
+#endif /* HAVE_SLANG_SUPPORT */
+
+static void ui_quirks(void)
+{
+ if (!c2c.use_stdio) {
+ dim_offset.width = 5;
+ dim_offset.header = header_offset_tui;
+ }
+}
+
static int perf_c2c__report(int argc, const char **argv)
{
struct perf_session *session;
@@ -1819,6 +1921,9 @@ static int perf_c2c__report(int argc, const char **argv)
"the input file to process"),
OPT_INCR('N', "node-info", &c2c.node_info,
"show extra node info in report (repeat for more info)"),
+#ifdef HAVE_SLANG_SUPPORT
+ OPT_BOOLEAN(0, "stdio", &c2c.use_stdio, "Use the stdio interface"),
+#endif
OPT_END()
};
int err = 0;
@@ -1828,6 +1933,13 @@ static int perf_c2c__report(int argc, const char **argv)
if (argc)
usage_with_options(report_c2c_usage, c2c_options);
+ if (c2c.use_stdio)
+ use_browser = 0;
+ else
+ use_browser = 1;
+
+ setup_browser(false);
+
if (!input_name || !strlen(input_name))
input_name = "perf.data";
@@ -1886,8 +1998,9 @@ static int perf_c2c__report(int argc, const char **argv)
ui_progress__finish();
- use_browser = 0;
- perf_c2c__hists_fprintf(stdout);
+ ui_quirks();
+
+ perf_c2c_display();
out_session:
perf_session__delete(session);
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 4ffff7be9299..31d6d5a7c2dc 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -30,7 +30,7 @@ static struct rb_node *hists__filter_entries(struct rb_node *nd,
static bool hist_browser__has_filter(struct hist_browser *hb)
{
- return hists__has_filter(hb->hists) || hb->min_pcnt || symbol_conf.has_filter;
+ return hists__has_filter(hb->hists) || hb->min_pcnt || symbol_conf.has_filter || hb->c2c_filter;
}
static int hist_browser__get_folding(struct hist_browser *browser)
diff --git a/tools/perf/ui/browsers/hists.h b/tools/perf/ui/browsers/hists.h
index 39bd0f28f211..23d6acb84800 100644
--- a/tools/perf/ui/browsers/hists.h
+++ b/tools/perf/ui/browsers/hists.h
@@ -18,6 +18,7 @@ struct hist_browser {
u64 nr_non_filtered_entries;
u64 nr_hierarchy_entries;
u64 nr_callchain_rows;
+ bool c2c_filter;
/* Get title string. */
int (*title)(struct hist_browser *browser,
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 37/52] perf c2c report: Add TUI cacheline browser
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (35 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 36/52] perf c2c report: Add main TUI browser Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 38/52] perf c2c report: Add global stats stdio output Arnaldo Carvalho de Melo
` (16 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Adding simple TUI cacheline browser. It triggers when you press 'd' in
the main browser on the specific cacheline.
It allows to navigate through cacheline's offsets and display callchains
(implemented in following patches).
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-fovjwgyusv3rz5qxk3hnahtl@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 81 ++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 81 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index c42991664703..2b99d1273024 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -1829,6 +1829,84 @@ static void c2c_browser__update_nr_entries(struct hist_browser *hb)
hb->nr_non_filtered_entries = nr_entries;
}
+struct c2c_cacheline_browser {
+ struct hist_browser hb;
+ struct hist_entry *he;
+};
+
+static int
+perf_c2c_cacheline_browser__title(struct hist_browser *browser,
+ char *bf, size_t size)
+{
+ struct c2c_cacheline_browser *cl_browser;
+ struct hist_entry *he;
+ uint64_t addr = 0;
+
+ cl_browser = container_of(browser, struct c2c_cacheline_browser, hb);
+ he = cl_browser->he;
+
+ if (he->mem_info)
+ addr = cl_address(he->mem_info->daddr.addr);
+
+ scnprintf(bf, size, "Cacheline 0x%lx", addr);
+ return 0;
+}
+
+static struct c2c_cacheline_browser*
+c2c_cacheline_browser__new(struct hists *hists, struct hist_entry *he)
+{
+ struct c2c_cacheline_browser *browser;
+
+ browser = zalloc(sizeof(*browser));
+ if (browser) {
+ hist_browser__init(&browser->hb, hists);
+ browser->hb.c2c_filter = true;
+ browser->hb.title = perf_c2c_cacheline_browser__title;
+ browser->he = he;
+ }
+
+ return browser;
+}
+
+static int perf_c2c__browse_cacheline(struct hist_entry *he)
+{
+ struct c2c_hist_entry *c2c_he;
+ struct c2c_hists *c2c_hists;
+ struct c2c_cacheline_browser *cl_browser;
+ struct hist_browser *browser;
+ int key = -1;
+
+ c2c_he = container_of(he, struct c2c_hist_entry, he);
+ c2c_hists = c2c_he->hists;
+
+ cl_browser = c2c_cacheline_browser__new(&c2c_hists->hists, he);
+ if (cl_browser == NULL)
+ return -1;
+
+ browser = &cl_browser->hb;
+
+ /* reset abort key so that it can get Ctrl-C as a key */
+ SLang_reset_tty();
+ SLang_init_tty(0, 0, 0);
+
+ c2c_browser__update_nr_entries(browser);
+
+ while (1) {
+ key = hist_browser__run(browser, "help");
+
+ switch (key) {
+ case 'q':
+ goto out;
+ default:
+ break;
+ }
+ }
+
+out:
+ free(cl_browser);
+ return 0;
+}
+
static int perf_c2c_browser__title(struct hist_browser *browser,
char *bf, size_t size)
{
@@ -1872,6 +1950,9 @@ static int perf_c2c__hists_browse(struct hists *hists)
switch (key) {
case 'q':
goto out;
+ case 'd':
+ perf_c2c__browse_cacheline(browser->he_selection);
+ break;
default:
break;
}
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 38/52] perf c2c report: Add global stats stdio output
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (36 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 37/52] perf c2c report: Add TUI cacheline browser Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 39/52] perf c2c report: Add shared cachelines " Arnaldo Carvalho de Melo
` (15 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Display global stats table as part of the stdio output
or when --stats option is speicified:
$ perf c2c report --stats
=================================================
Trace Event Information
=================================================
Total records : 41237
Locked Load/Store Operations : 4075
Load Operations : 20526
Loads - uncacheable : 0
Loads - IO : 0
Loads - Miss : 552
Loads - no mapping : 31
Load Fill Buffer Hit : 7333
Load L1D hit : 6398
Load L2D hit : 144
Load LLC hit : 4889
Load Local HITM : 1185
Load Remote HITM : 838
Load Remote HIT : 52
Load Local DRAM : 183
Load Remote DRAM : 106
Load MESI State Exclusive : 289
Load MESI State Shared : 0
Load LLC Misses : 1179
LLC Misses to Local DRAM : 15.5%
LLC Misses to Remote DRAM : 9.0%
LLC Misses to Remote cache (HIT) : 4.4%
LLC Misses to Remote cache (HITM) : 71.1%
Store Operations : 20711
Store - uncacheable : 0
Store - no mapping : 1
Store L1D Hit : 20158
Store L1D Miss : 552
No Page Map Rejects : 7
Unable to parse data source : 0
Original-patch-by: Dick Fowles <rfowles@redhat.com>
Original-patch-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-qkyvao3qsrnwazf0w1jvsh7z@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 56 ++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 56 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 2b99d1273024..d365902acf61 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -55,6 +55,7 @@ struct perf_c2c {
bool show_src;
bool use_stdio;
+ bool stats_only;
};
static struct perf_c2c c2c;
@@ -1731,6 +1732,51 @@ static int setup_nodes(struct perf_session *session)
return 0;
}
+static void print_c2c__display_stats(FILE *out)
+{
+ int llc_misses;
+ struct c2c_stats *stats = &c2c.hists.stats;
+
+ llc_misses = stats->lcl_dram +
+ stats->rmt_dram +
+ stats->rmt_hit +
+ stats->rmt_hitm;
+
+ fprintf(out, "=================================================\n");
+ fprintf(out, " Trace Event Information \n");
+ fprintf(out, "=================================================\n");
+ fprintf(out, " Total records : %10d\n", stats->nr_entries);
+ fprintf(out, " Locked Load/Store Operations : %10d\n", stats->locks);
+ fprintf(out, " Load Operations : %10d\n", stats->load);
+ fprintf(out, " Loads - uncacheable : %10d\n", stats->ld_uncache);
+ fprintf(out, " Loads - IO : %10d\n", stats->ld_io);
+ fprintf(out, " Loads - Miss : %10d\n", stats->ld_miss);
+ fprintf(out, " Loads - no mapping : %10d\n", stats->ld_noadrs);
+ fprintf(out, " Load Fill Buffer Hit : %10d\n", stats->ld_fbhit);
+ fprintf(out, " Load L1D hit : %10d\n", stats->ld_l1hit);
+ fprintf(out, " Load L2D hit : %10d\n", stats->ld_l2hit);
+ fprintf(out, " Load LLC hit : %10d\n", stats->ld_llchit + stats->lcl_hitm);
+ fprintf(out, " Load Local HITM : %10d\n", stats->lcl_hitm);
+ fprintf(out, " Load Remote HITM : %10d\n", stats->rmt_hitm);
+ fprintf(out, " Load Remote HIT : %10d\n", stats->rmt_hit);
+ fprintf(out, " Load Local DRAM : %10d\n", stats->lcl_dram);
+ fprintf(out, " Load Remote DRAM : %10d\n", stats->rmt_dram);
+ fprintf(out, " Load MESI State Exclusive : %10d\n", stats->ld_excl);
+ fprintf(out, " Load MESI State Shared : %10d\n", stats->ld_shared);
+ fprintf(out, " Load LLC Misses : %10d\n", llc_misses);
+ fprintf(out, " LLC Misses to Local DRAM : %10.1f%%\n", ((double)stats->lcl_dram/(double)llc_misses) * 100.);
+ fprintf(out, " LLC Misses to Remote DRAM : %10.1f%%\n", ((double)stats->rmt_dram/(double)llc_misses) * 100.);
+ fprintf(out, " LLC Misses to Remote cache (HIT) : %10.1f%%\n", ((double)stats->rmt_hit /(double)llc_misses) * 100.);
+ fprintf(out, " LLC Misses to Remote cache (HITM) : %10.1f%%\n", ((double)stats->rmt_hitm/(double)llc_misses) * 100.);
+ fprintf(out, " Store Operations : %10d\n", stats->store);
+ fprintf(out, " Store - uncacheable : %10d\n", stats->st_uncache);
+ fprintf(out, " Store - no mapping : %10d\n", stats->st_noadrs);
+ fprintf(out, " Store L1D Hit : %10d\n", stats->st_l1hit);
+ fprintf(out, " Store L1D Miss : %10d\n", stats->st_l1miss);
+ fprintf(out, " No Page Map Rejects : %10d\n", stats->nomap);
+ fprintf(out, " Unable to parse data source : %10d\n", stats->noparse);
+}
+
static void print_cacheline(struct c2c_hists *c2c_hists,
struct hist_entry *he_cl,
struct perf_hpp_list *hpp_list,
@@ -1794,6 +1840,11 @@ static void perf_c2c__hists_fprintf(FILE *out)
{
setup_pager();
+ print_c2c__display_stats(out);
+
+ if (c2c.stats_only)
+ return;
+
fprintf(out, "\n");
fprintf(out, "=================================================\n");
fprintf(out, " Shared Data Cache Line Table \n");
@@ -2005,6 +2056,8 @@ static int perf_c2c__report(int argc, const char **argv)
#ifdef HAVE_SLANG_SUPPORT
OPT_BOOLEAN(0, "stdio", &c2c.use_stdio, "Use the stdio interface"),
#endif
+ OPT_BOOLEAN(0, "stats", &c2c.stats_only,
+ "Use the stdio interface"),
OPT_END()
};
int err = 0;
@@ -2014,6 +2067,9 @@ static int perf_c2c__report(int argc, const char **argv)
if (argc)
usage_with_options(report_c2c_usage, c2c_options);
+ if (c2c.stats_only)
+ c2c.use_stdio = true;
+
if (c2c.use_stdio)
use_browser = 0;
else
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 39/52] perf c2c report: Add shared cachelines stats stdio output
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (37 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 38/52] perf c2c report: Add global stats stdio output Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 40/52] perf c2c report: Add c2c related " Arnaldo Carvalho de Melo
` (14 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Display global shared cachelines related stats table as part of the
stdio output or when --stats option is speicified:
$ perf c2c report --stats
...
=================================================
Global Shared Cache Line Event Information
=================================================
Total Shared Cache Lines : 1384
Load HITs on shared lines : 5995
Fill Buffer Hits on shared lines : 1726
L1D hits on shared lines : 1943
L2D hits on shared lines : 0
LLC hits on shared lines : 1360
Locked Access on shared lines : 1993
Store HITs on shared lines : 1504
Store L1D hits on shared lines : 1446
Total Merged records : 3527
Original-patch-by: Dick Fowles <rfowles@redhat.com>
Original-patch-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-p0gty8ctbdzisrniwqxhqmhq@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 61 insertions(+), 1 deletion(-)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index d365902acf61..7bbb969f284a 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -56,6 +56,10 @@ struct perf_c2c {
bool show_src;
bool use_stdio;
bool stats_only;
+
+ /* HITM shared clines stats */
+ struct c2c_stats hitm_stats;
+ int shared_clines;
};
static struct perf_c2c c2c;
@@ -1732,6 +1736,39 @@ static int setup_nodes(struct perf_session *session)
return 0;
}
+#define HAS_HITMS(__h) ((__h)->stats.lcl_hitm || (__h)->stats.rmt_hitm)
+
+static int resort_hitm_cb(struct hist_entry *he)
+{
+ struct c2c_hist_entry *c2c_he;
+ c2c_he = container_of(he, struct c2c_hist_entry, he);
+
+ if (HAS_HITMS(c2c_he)) {
+ c2c.shared_clines++;
+ c2c_add_stats(&c2c.hitm_stats, &c2c_he->stats);
+ }
+
+ return 0;
+}
+
+static int hists__iterate_cb(struct hists *hists, hists__resort_cb_t cb)
+{
+ struct rb_node *next = rb_first(&hists->entries);
+ int ret = 0;
+
+ while (next) {
+ struct hist_entry *he;
+
+ he = rb_entry(next, struct hist_entry, rb_node);
+ ret = cb(he);
+ if (ret)
+ break;
+ next = rb_next(&he->rb_node);
+ }
+
+ return ret;
+}
+
static void print_c2c__display_stats(FILE *out)
{
int llc_misses;
@@ -1777,6 +1814,26 @@ static void print_c2c__display_stats(FILE *out)
fprintf(out, " Unable to parse data source : %10d\n", stats->noparse);
}
+static void print_shared_cacheline_info(FILE *out)
+{
+ struct c2c_stats *stats = &c2c.hitm_stats;
+ int hitm_cnt = stats->lcl_hitm + stats->rmt_hitm;
+
+ fprintf(out, "=================================================\n");
+ fprintf(out, " Global Shared Cache Line Event Information \n");
+ fprintf(out, "=================================================\n");
+ fprintf(out, " Total Shared Cache Lines : %10d\n", c2c.shared_clines);
+ fprintf(out, " Load HITs on shared lines : %10d\n", stats->load);
+ fprintf(out, " Fill Buffer Hits on shared lines : %10d\n", stats->ld_fbhit);
+ fprintf(out, " L1D hits on shared lines : %10d\n", stats->ld_l1hit);
+ fprintf(out, " L2D hits on shared lines : %10d\n", stats->ld_l2hit);
+ fprintf(out, " LLC hits on shared lines : %10d\n", stats->ld_llchit + stats->lcl_hitm);
+ fprintf(out, " Locked Access on shared lines : %10d\n", stats->locks);
+ fprintf(out, " Store HITs on shared lines : %10d\n", stats->store);
+ fprintf(out, " Store L1D hits on shared lines : %10d\n", stats->st_l1hit);
+ fprintf(out, " Total Merged records : %10d\n", hitm_cnt + stats->store);
+}
+
static void print_cacheline(struct c2c_hists *c2c_hists,
struct hist_entry *he_cl,
struct perf_hpp_list *hpp_list,
@@ -1841,6 +1898,8 @@ static void perf_c2c__hists_fprintf(FILE *out)
setup_pager();
print_c2c__display_stats(out);
+ fprintf(out, "\n");
+ print_shared_cacheline_info(out);
if (c2c.stats_only)
return;
@@ -2131,7 +2190,8 @@ static int perf_c2c__report(int argc, const char **argv)
ui_progress__init(&prog, c2c.hists.hists.nr_entries, "Sorting...");
hists__collapse_resort(&c2c.hists.hists, NULL);
- hists__output_resort_cb(&c2c.hists.hists, &prog, resort_cl_cb);
+ hists__output_resort_cb(&c2c.hists.hists, &prog, resort_hitm_cb);
+ hists__iterate_cb(&c2c.hists.hists, resort_cl_cb);
ui_progress__finish();
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 40/52] perf c2c report: Add c2c related stats stdio output
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (38 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 39/52] perf c2c report: Add shared cachelines " Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 41/52] perf c2c report: Allow to report callchains Arnaldo Carvalho de Melo
` (13 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Display c2c related configuration options/setup.
So far it's output of monitored events:
$ perf c2c report --stats
...
=================================================
c2c details
=================================================
Events : cpu/mem-loads,ldlat=50/pp
: cpu/mem-stores/pp
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-ypz84f3a9fumyttrxurm458z@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 33 +++++++++++++++++++++++++++------
1 file changed, 27 insertions(+), 6 deletions(-)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 7bbb969f284a..c36d1dc668ac 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -13,6 +13,8 @@
#include "tool.h"
#include "data.h"
#include "sort.h"
+#include "evlist.h"
+#include "evsel.h"
#include <asm/bug.h>
#include "ui/browsers/hists.h"
@@ -1893,13 +1895,32 @@ static void print_pareto(FILE *out)
}
}
-static void perf_c2c__hists_fprintf(FILE *out)
+static void print_c2c_info(FILE *out, struct perf_session *session)
+{
+ struct perf_evlist *evlist = session->evlist;
+ struct perf_evsel *evsel;
+ bool first = true;
+
+ fprintf(out, "=================================================\n");
+ fprintf(out, " c2c details \n");
+ fprintf(out, "=================================================\n");
+
+ evlist__for_each_entry(evlist, evsel) {
+ fprintf(out, "%-36s: %s\n", first ? " Events" : "",
+ perf_evsel__name(evsel));
+ first = false;
+ }
+}
+
+static void perf_c2c__hists_fprintf(FILE *out, struct perf_session *session)
{
setup_pager();
print_c2c__display_stats(out);
fprintf(out, "\n");
print_shared_cacheline_info(out);
+ fprintf(out, "\n");
+ print_c2c_info(out, session);
if (c2c.stats_only)
return;
@@ -2073,18 +2094,18 @@ static int perf_c2c__hists_browse(struct hists *hists)
return 0;
}
-static void perf_c2c_display(void)
+static void perf_c2c_display(struct perf_session *session)
{
if (c2c.use_stdio)
- perf_c2c__hists_fprintf(stdout);
+ perf_c2c__hists_fprintf(stdout, session);
else
perf_c2c__hists_browse(&c2c.hists.hists);
}
#else
-static void perf_c2c_display(void)
+static void perf_c2c_display(struct perf_session *session)
{
use_browser = 0;
- perf_c2c__hists_fprintf(stdout);
+ perf_c2c__hists_fprintf(stdout, session);
}
#endif /* HAVE_SLANG_SUPPORT */
@@ -2197,7 +2218,7 @@ static int perf_c2c__report(int argc, const char **argv)
ui_quirks();
- perf_c2c_display();
+ perf_c2c_display(session);
out_session:
perf_session__delete(session);
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 41/52] perf c2c report: Allow to report callchains
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (39 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 40/52] perf c2c report: Add c2c related " Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 42/52] perf c2c report: Limit the cachelines table entries Arnaldo Carvalho de Melo
` (12 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Add --call-graph option to properly setup callchain code. Adding default
settings to display callchains whenever they are stored in the
perf.data.
Committer Notes:
Testing it:
[root@jouet ~]# perf c2c record -a -g sleep 5
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 5.331 MB perf.data (4263 samples) ]
[root@jouet ~]# perf evlist -v
cpu/mem-loads,ldlat=30/P: type: 4, size: 112, config: 0x1cd, { sample_period, sample_freq }: 4000, sample_type: IP|TID|TIME|ADDR|CALLCHAIN|ID|CPU|PERIOD|DATA_SRC|WEIGHT, read_format: ID, disabled: 1, inherit: 1, mmap: 1, comm: 1, freq: 1, task: 1, precise_ip: 3, mmap_data: 1, sample_id_all: 1, mmap2: 1, comm_exec: 1, { bp_addr, config1 }: 0x1f
cpu/mem-stores/P: type: 4, size: 112, config: 0x82d0, { sample_period, sample_freq }: 4000, sample_type: IP|TID|TIME|ADDR|CALLCHAIN|ID|CPU|PERIOD|DATA_SRC|WEIGHT, read_format: ID, disabled: 1, inherit: 1, freq: 1, precise_ip: 3, sample_id_all: 1
[root@jouet ~]# perf c2c report --stats
=================================================
Trace Event Information
=================================================
Total records : 4263
Locked Load/Store Operations : 220
Load Operations : 2130
Loads - uncacheable : 1
Loads - IO : 7
Loads - Miss : 86
Loads - no mapping : 5
Load Fill Buffer Hit : 609
Load L1D hit : 612
=================================================
Trace Event Information
=================================================
Total records : 4263
Locked Load/Store Operations : 220
Load Operations : 2130
Loads - uncacheable : 1
Loads - IO : 7
Loads - Miss : 86
Loads - no mapping : 5
Load Fill Buffer Hit : 609
Load L1D hit : 612
Load L2D hit : 27
Load LLC hit : 607
Load Local HITM : 15
Load Remote HITM : 0
Load Remote HIT : 0
Load Local DRAM : 176
Load Remote DRAM : 0
Load MESI State Exclusive : 176
Load MESI State Shared : 0
Load LLC Misses : 176
LLC Misses to Local DRAM : 100.0%
LLC Misses to Remote DRAM : 0.0%
LLC Misses to Remote cache (HIT) : 0.0%
LLC Misses to Remote cache (HITM) : 0.0%
Store Operations : 2133
Store - uncacheable : 0
Store - no mapping : 1
Store L1D Hit : 1967
Store L1D Miss : 165
No Page Map Rejects : 145
Unable to parse data source : 0
=================================================
Global Shared Cache Line Event Information
=================================================
Total Shared Cache Lines : 15
Load HITs on shared lines : 26
Fill Buffer Hits on shared lines : 7
L1D hits on shared lines : 3
L2D hits on shared lines : 0
LLC hits on shared lines : 16
Locked Access on shared lines : 2
Store HITs on shared lines : 8
Store L1D hits on shared lines : 7
Total Merged records : 23
=================================================
c2c details
=================================================
Events : cpu/mem-loads,ldlat=30/P
: cpu/mem-stores/P
[root@jouet ~]#
[root@jouet ~]# perf c2c report
Shared Data Cache Line Table (2378 entries)
Total --- LLC Load Hitm -- -- Store Reference - - Load Dram - LLC Total - Core Load Hit -
Cacheline records %hitm Total Lcl Rmt Total L1Hit L1Miss Lcl Rmt Ld Miss Loads FB L1 L2
- 0xffff880024380c00 10 0.00% 0 0 0 6 6 0 0 0 0 4 1 3 0
- 0.13% _raw_spin_lock_irqsave
- 0.07% ep_poll
sys_epoll_wait
do_syscall_64
return_from_SYSCALL_64
+ 0x103573
- 0.05% ep_poll_callback
__wake_up_common
- __wake_up_sync_key
- 0.02% pipe_read
__vfs_read
vfs_read
sys_read
do_syscall_64
return_from_SYSCALL_64
0xfdad
+ 0.02% sock_def_readable
+ 0.02% ep_scan_ready_list.constprop.12
+ 0.00% mutex_lock
+ 0.00% __wake_up_common
+ 0xffff880024380c40 1 0.00% 0 0 0 1 1 0 0 0 0 0 0 0 0
+ 0xffff880024380c80 1 0.00% 0 0 0 0 0 0 0 0 0 1 0 0 0
- 0xffff8800243e9f00 1 0.00% 0 0 0 1 1 0 0 0 0 0 0 0 0
enqueue_entity
enqueue_task_fair
activate_task
ttwu_do_activate
try_to_wake_up
wake_up_process
hrtimer_wakeup
__hrtimer_run_queues
hrtimer_interrupt
local_apic_timer_interrupt
smp_apic_timer_interrupt
apic_timer_interrupt
cpuidle_enter
call_cpuidle
help
-------------
And when presing 'd' to see the cacheline details:
Cacheline 0xffff880024380c00
----- HITM ----- -- Store Refs -- --------- cycles ----- cpu
Rmt Lcl L1 Hit L1 Miss Off Pid Tid rmt hitm lcl hitm load cnt Symbol
- 0.00% 0.00% 100.00% 0.00% 0x0 1473 1474:Chrome_ChildIOT 0 0 41 2 [k] _raw_spin_lock_irqsave [kernel]
- _raw_spin_lock_irqsave
- 51.52% ep_poll
sys_epoll_wait
do_syscall_64
return_from_SYSCALL_64
- 0x103573
47.19% 0
4.33% 0xc30bd
- 35.93% ep_poll_callback
__wake_up_common
- __wake_up_sync_key
- 18.20% pipe_read
__vfs_read
vfs_read
sys_read
do_syscall_64
return_from_SYSCALL_64
0xfdad
- 17.73% sock_def_readable
unix_stream_sendmsg
sock_sendmsg
___sys_sendmsg
__sys_sendmsg
sys_sendmsg
do_syscall_64
return_from_SYSCALL_64
__GI___libc_sendmsg
0x12c036af1fc0
0x16a4050
0x894928ec83485354
+ 12.45% ep_scan_ready_list.constprop.12
+ 0.00% 0.00% 0.00% 0.00% 0x8 1473 1474:Chrome_ChildIOT 0 0 102 1 [k] mutex_lock [kernel]
+ 0.00% 0.00% 0.00% 0.00% 0x38 1473 1473:chrome 0 0 88 1 [k] __wake_up_common [kernel]
help
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-inykbom2f19difvsu1e18avr@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 67 ++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 67 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index c36d1dc668ac..d51a6c3515cb 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -17,6 +17,7 @@
#include "evsel.h"
#include <asm/bug.h>
#include "ui/browsers/hists.h"
+#include "evlist.h"
struct c2c_hists {
struct hists hists;
@@ -183,6 +184,11 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused,
return -1;
}
+ ret = sample__resolve_callchain(sample, &callchain_cursor, NULL,
+ evsel, &al, sysctl_perf_event_max_stack);
+ if (ret)
+ goto out;
+
mi = sample__resolve_mem(sample, &al);
if (mi == NULL)
return -ENOMEM;
@@ -2117,6 +2123,58 @@ static void ui_quirks(void)
}
}
+#define CALLCHAIN_DEFAULT_OPT "graph,0.5,caller,function,percent"
+
+const char callchain_help[] = "Display call graph (stack chain/backtrace):\n\n"
+ CALLCHAIN_REPORT_HELP
+ "\n\t\t\t\tDefault: " CALLCHAIN_DEFAULT_OPT;
+
+static int
+parse_callchain_opt(const struct option *opt, const char *arg, int unset)
+{
+ struct callchain_param *callchain = opt->value;
+
+ callchain->enabled = !unset;
+ /*
+ * --no-call-graph
+ */
+ if (unset) {
+ symbol_conf.use_callchain = false;
+ callchain->mode = CHAIN_NONE;
+ return 0;
+ }
+
+ return parse_callchain_report_opt(arg);
+}
+
+static int setup_callchain(struct perf_evlist *evlist)
+{
+ u64 sample_type = perf_evlist__combined_sample_type(evlist);
+ enum perf_call_graph_mode mode = CALLCHAIN_NONE;
+
+ if ((sample_type & PERF_SAMPLE_REGS_USER) &&
+ (sample_type & PERF_SAMPLE_STACK_USER))
+ mode = CALLCHAIN_DWARF;
+ else if (sample_type & PERF_SAMPLE_BRANCH_STACK)
+ mode = CALLCHAIN_LBR;
+ else if (sample_type & PERF_SAMPLE_CALLCHAIN)
+ mode = CALLCHAIN_FP;
+
+ if (!callchain_param.enabled &&
+ callchain_param.mode != CHAIN_NONE &&
+ mode != CALLCHAIN_NONE) {
+ symbol_conf.use_callchain = true;
+ if (callchain_register_param(&callchain_param) < 0) {
+ ui__error("Can't register callchain params.\n");
+ return -EINVAL;
+ }
+ }
+
+ callchain_param.record_mode = mode;
+ callchain_param.min_percent = 0;
+ return 0;
+}
+
static int perf_c2c__report(int argc, const char **argv)
{
struct perf_session *session;
@@ -2124,6 +2182,7 @@ static int perf_c2c__report(int argc, const char **argv)
struct perf_data_file file = {
.mode = PERF_DATA_MODE_READ,
};
+ char callchain_default_opt[] = CALLCHAIN_DEFAULT_OPT;
const struct option c2c_options[] = {
OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
"file", "vmlinux pathname"),
@@ -2138,6 +2197,10 @@ static int perf_c2c__report(int argc, const char **argv)
#endif
OPT_BOOLEAN(0, "stats", &c2c.stats_only,
"Use the stdio interface"),
+ OPT_CALLBACK_DEFAULT('g', "call-graph", &callchain_param,
+ "print_type,threshold[,print_limit],order,sort_key[,branch],value",
+ callchain_help, &parse_callchain_opt,
+ callchain_default_opt),
OPT_END()
};
int err = 0;
@@ -2179,6 +2242,10 @@ static int perf_c2c__report(int argc, const char **argv)
goto out;
}
+ err = setup_callchain(session->evlist);
+ if (err)
+ goto out_session;
+
if (symbol__init(&session->header.env) < 0)
goto out_session;
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 42/52] perf c2c report: Limit the cachelines table entries
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (40 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 41/52] perf c2c report: Allow to report callchains Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 43/52] perf c2c report: Add support to choose local HITMs Arnaldo Carvalho de Melo
` (11 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Add a limit for entries number of the cachelines table entries. By
default now it's the 0.0005% minimum of remote HITMs.
Also display only cachelines with remote hitm or store data.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-inykbom2f19difvsu1e18avr@git.kernel.org
[ Disabled for now ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 37 ++++++++++++++++++++++++++++++++++++-
tools/perf/util/hist.c | 1 +
tools/perf/util/hist.h | 1 +
3 files changed, 38 insertions(+), 1 deletion(-)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index d51a6c3515cb..0bae8c965554 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -1642,11 +1642,45 @@ static int c2c_hists__reinit(struct c2c_hists *c2c_hists,
return hpp_list__parse(&c2c_hists->list, output, sort);
}
+#define DISPLAY_LINE_LIMIT 0.0005
+
+static bool he__display(struct hist_entry *he, struct c2c_stats *stats)
+{
+ struct c2c_hist_entry *c2c_he;
+ double ld_dist;
+
+ /* XXX Disabled for now, till we get a command line switch to control this */
+ return true;
+
+ c2c_he = container_of(he, struct c2c_hist_entry, he);
+
+ if (stats->rmt_hitm) {
+ ld_dist = ((double)c2c_he->stats.rmt_hitm / stats->rmt_hitm);
+ if (ld_dist < DISPLAY_LINE_LIMIT)
+ he->filtered = HIST_FILTER__C2C;
+ } else {
+ he->filtered = HIST_FILTER__C2C;
+ }
+
+ return he->filtered == 0;
+}
+
+static inline int valid_hitm_or_store(struct hist_entry *he)
+{
+ struct c2c_hist_entry *c2c_he;
+
+ c2c_he = container_of(he, struct c2c_hist_entry, he);
+ return c2c_he->stats.rmt_hitm || c2c_he->stats.store;
+}
+
static int filter_cb(struct hist_entry *he)
{
if (c2c.show_src && !he->srcline)
he->srcline = hist_entry__get_srcline(he);
+ if (!valid_hitm_or_store(he))
+ he->filtered = HIST_FILTER__C2C;
+
return 0;
}
@@ -1654,11 +1688,12 @@ static int resort_cl_cb(struct hist_entry *he)
{
struct c2c_hist_entry *c2c_he;
struct c2c_hists *c2c_hists;
+ bool display = he__display(he, &c2c.hitm_stats);
c2c_he = container_of(he, struct c2c_hist_entry, he);
c2c_hists = c2c_he->hists;
- if (c2c_hists) {
+ if (display && c2c_hists) {
c2c_hists__reinit(c2c_hists,
"percent_rmt_hitm,"
"percent_lcl_hitm,"
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index b02992efb513..e1be4132054d 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -1195,6 +1195,7 @@ static void hist_entry__check_and_remove_filter(struct hist_entry *he,
case HIST_FILTER__GUEST:
case HIST_FILTER__HOST:
case HIST_FILTER__SOCKET:
+ case HIST_FILTER__C2C:
default:
return;
}
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 9928fed8bc59..d4b6514eeef5 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -22,6 +22,7 @@ enum hist_filter {
HIST_FILTER__GUEST,
HIST_FILTER__HOST,
HIST_FILTER__SOCKET,
+ HIST_FILTER__C2C,
};
enum hist_column {
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 43/52] perf c2c report: Add support to choose local HITMs
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (41 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 42/52] perf c2c report: Limit the cachelines table entries Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 44/52] perf c2c report: Allow to set cacheline sort fields Arnaldo Carvalho de Melo
` (10 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Currently we sort and limit displayed data based on the remote HITMs
count. Adding support to switch to local HITMs via --display option:
--display ... lcl,rmt
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-inykbom2f19difvsu1e18avr@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 114 +++++++++++++++++++++++++++++++++++++++--------
1 file changed, 95 insertions(+), 19 deletions(-)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 0bae8c965554..aad450861045 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -63,6 +63,13 @@ struct perf_c2c {
/* HITM shared clines stats */
struct c2c_stats hitm_stats;
int shared_clines;
+
+ int display;
+};
+
+enum {
+ DISPLAY_LCL,
+ DISPLAY_RMT,
};
static struct perf_c2c c2c;
@@ -684,15 +691,24 @@ static double percent_hitm(struct c2c_hist_entry *c2c_he)
struct c2c_hists *hists;
struct c2c_stats *stats;
struct c2c_stats *total;
- int tot, st;
+ int tot = 0, st = 0;
double p;
hists = container_of(c2c_he->he.hists, struct c2c_hists, hists);
stats = &c2c_he->stats;
total = &hists->stats;
- st = stats->rmt_hitm;
- tot = total->rmt_hitm;
+ switch (c2c.display) {
+ case DISPLAY_RMT:
+ st = stats->rmt_hitm;
+ tot = total->rmt_hitm;
+ break;
+ case DISPLAY_LCL:
+ st = stats->lcl_hitm;
+ tot = total->lcl_hitm;
+ default:
+ break;
+ }
p = tot ? (double) st / tot : 0;
@@ -975,14 +991,26 @@ node_entry(struct perf_hpp_fmt *fmt __maybe_unused, struct perf_hpp *hpp,
ret = scnprintf(hpp->buf, hpp->size, "%2d{%2d ", node, num);
advance_hpp(hpp, ret);
+ #define DISPLAY_HITM(__h) \
+ if (c2c_he->stats.__h> 0) { \
+ ret = scnprintf(hpp->buf, hpp->size, "%5.1f%% ", \
+ percent(stats->__h, c2c_he->stats.__h));\
+ } else { \
+ ret = scnprintf(hpp->buf, hpp->size, "%6s ", "n/a"); \
+ }
- if (c2c_he->stats.rmt_hitm > 0) {
- ret = scnprintf(hpp->buf, hpp->size, "%5.1f%% ",
- percent(stats->rmt_hitm, c2c_he->stats.rmt_hitm));
- } else {
- ret = scnprintf(hpp->buf, hpp->size, "%6s ", "n/a");
+ switch (c2c.display) {
+ case DISPLAY_RMT:
+ DISPLAY_HITM(rmt_hitm);
+ break;
+ case DISPLAY_LCL:
+ DISPLAY_HITM(lcl_hitm);
+ default:
+ break;
}
+ #undef DISPLAY_HITM
+
advance_hpp(hpp, ret);
if (c2c_he->stats.store > 0) {
@@ -1258,8 +1286,12 @@ static struct c2c_dimension dim_tot_loads = {
.width = 7,
};
+static struct c2c_header percent_hitm_header[] = {
+ [DISPLAY_LCL] = HEADER_BOTH("Lcl", "Hitm"),
+ [DISPLAY_RMT] = HEADER_BOTH("Rmt", "Hitm"),
+};
+
static struct c2c_dimension dim_percent_hitm = {
- .header = HEADER_LOW("%hitm"),
.name = "percent_hitm",
.cmp = percent_hitm_cmp,
.entry = percent_hitm_entry,
@@ -1654,23 +1686,39 @@ static bool he__display(struct hist_entry *he, struct c2c_stats *stats)
c2c_he = container_of(he, struct c2c_hist_entry, he);
- if (stats->rmt_hitm) {
- ld_dist = ((double)c2c_he->stats.rmt_hitm / stats->rmt_hitm);
- if (ld_dist < DISPLAY_LINE_LIMIT)
- he->filtered = HIST_FILTER__C2C;
- } else {
- he->filtered = HIST_FILTER__C2C;
+#define FILTER_HITM(__h) \
+ if (stats->__h) { \
+ ld_dist = ((double)c2c_he->stats.__h / stats->__h); \
+ if (ld_dist < DISPLAY_LINE_LIMIT) \
+ he->filtered = HIST_FILTER__C2C; \
+ } else { \
+ he->filtered = HIST_FILTER__C2C; \
}
+ switch (c2c.display) {
+ case DISPLAY_LCL:
+ FILTER_HITM(lcl_hitm);
+ break;
+ case DISPLAY_RMT:
+ FILTER_HITM(rmt_hitm);
+ default:
+ break;
+ };
+
+#undef FILTER_HITM
+
return he->filtered == 0;
}
static inline int valid_hitm_or_store(struct hist_entry *he)
{
struct c2c_hist_entry *c2c_he;
+ bool has_hitm;
c2c_he = container_of(he, struct c2c_hist_entry, he);
- return c2c_he->stats.rmt_hitm || c2c_he->stats.store;
+ has_hitm = c2c.display == DISPLAY_LCL ?
+ c2c_he->stats.lcl_hitm : c2c_he->stats.rmt_hitm;
+ return has_hitm || c2c_he->stats.store;
}
static int filter_cb(struct hist_entry *he)
@@ -1951,6 +1999,8 @@ static void print_c2c_info(FILE *out, struct perf_session *session)
perf_evsel__name(evsel));
first = false;
}
+ fprintf(out, " Cachelines sort on : %s HITMs\n",
+ c2c.display == DISPLAY_LCL ? "Local" : "Remote");
}
static void perf_c2c__hists_fprintf(FILE *out, struct perf_session *session)
@@ -2083,8 +2133,10 @@ static int perf_c2c_browser__title(struct hist_browser *browser,
char *bf, size_t size)
{
scnprintf(bf, size,
- "Shared Data Cache Line Table "
- "(%lu entries)", browser->nr_non_filtered_entries);
+ "Shared Data Cache Line Table "
+ "(%lu entries, sorted on %s HITMs)",
+ browser->nr_non_filtered_entries,
+ c2c.display == DISPLAY_LCL ? "local" : "remote");
return 0;
}
@@ -2156,6 +2208,8 @@ static void ui_quirks(void)
dim_offset.width = 5;
dim_offset.header = header_offset_tui;
}
+
+ dim_percent_hitm.header = percent_hitm_header[c2c.display];
}
#define CALLCHAIN_DEFAULT_OPT "graph,0.5,caller,function,percent"
@@ -2210,6 +2264,22 @@ static int setup_callchain(struct perf_evlist *evlist)
return 0;
}
+static int setup_display(const char *str)
+{
+ const char *display = str ?: "rmt";
+
+ if (!strcmp(display, "rmt"))
+ c2c.display = DISPLAY_RMT;
+ else if (!strcmp(display, "lcl"))
+ c2c.display = DISPLAY_LCL;
+ else {
+ pr_err("failed: unknown display type: %s\n", str);
+ return -1;
+ }
+
+ return 0;
+}
+
static int perf_c2c__report(int argc, const char **argv)
{
struct perf_session *session;
@@ -2218,6 +2288,7 @@ static int perf_c2c__report(int argc, const char **argv)
.mode = PERF_DATA_MODE_READ,
};
char callchain_default_opt[] = CALLCHAIN_DEFAULT_OPT;
+ const char *display = NULL;
const struct option c2c_options[] = {
OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
"file", "vmlinux pathname"),
@@ -2236,6 +2307,7 @@ static int perf_c2c__report(int argc, const char **argv)
"print_type,threshold[,print_limit],order,sort_key[,branch],value",
callchain_help, &parse_callchain_opt,
callchain_default_opt),
+ OPT_STRING('d', "display", &display, NULL, "lcl,rmt"),
OPT_END()
};
int err = 0;
@@ -2260,6 +2332,10 @@ static int perf_c2c__report(int argc, const char **argv)
file.path = input_name;
+ err = setup_display(display);
+ if (err)
+ goto out;
+
err = c2c_hists__init(&c2c.hists, "dcacheline", 2);
if (err) {
pr_debug("Failed to initialize hists\n");
@@ -2307,7 +2383,7 @@ static int perf_c2c__report(int argc, const char **argv)
"tot_loads,"
"ld_fbhit,ld_l1hit,ld_l2hit,"
"ld_lclhit,ld_rmthit",
- "rmt_hitm"
+ c2c.display == DISPLAY_LCL ? "lcl_hitm" : "rmt_hitm"
);
ui_progress__init(&prog, c2c.hists.hists.nr_entries, "Sorting...");
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 44/52] perf c2c report: Allow to set cacheline sort fields
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (42 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 43/52] perf c2c report: Add support to choose local HITMs Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 45/52] perf c2c report: Recalc width of global sort entries Arnaldo Carvalho de Melo
` (9 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Allowing user to configure the way the single cacheline
data are sorted after being sorted by offset.
Adding 'c' option to specify sorting fields for single cacheline:
-c, --coalesce <coalesce fields>
coalesce fields: pid,tid,iaddr,dso
It's allowed to use following combination of fields:
pid - process pid
tid - process tid
iaddr - code address
dso - shared object
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-aka8z31umxoq2gqr5mjd81zr@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 119 ++++++++++++++++++++++++++++++++++++++++-------
1 file changed, 102 insertions(+), 17 deletions(-)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index aad450861045..2f3e430ddde0 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -46,6 +46,8 @@ struct c2c_hist_entry {
struct hist_entry he;
};
+static char const *coalesce_default = "pid,tid,iaddr";
+
struct perf_c2c {
struct perf_tool tool;
struct c2c_hists hists;
@@ -65,6 +67,11 @@ struct perf_c2c {
int shared_clines;
int display;
+
+ const char *coalesce;
+ char *cl_sort;
+ char *cl_resort;
+ char *cl_output;
};
enum {
@@ -239,7 +246,7 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused,
if (!mi_dup)
goto free_mi;
- c2c_hists = he__get_c2c_hists(he, "offset", 2);
+ c2c_hists = he__get_c2c_hists(he, c2c.cl_sort, 2);
if (!c2c_hists)
goto free_mi_dup;
@@ -1742,22 +1749,7 @@ static int resort_cl_cb(struct hist_entry *he)
c2c_hists = c2c_he->hists;
if (display && c2c_hists) {
- c2c_hists__reinit(c2c_hists,
- "percent_rmt_hitm,"
- "percent_lcl_hitm,"
- "percent_stores_l1hit,"
- "percent_stores_l1miss,"
- "offset,"
- "pid,"
- "tid,"
- "mean_rmt,"
- "mean_lcl,"
- "mean_load,"
- "cpucnt,"
- "symbol,"
- "dso,"
- "node",
- "offset,rmt_hitm,lcl_hitm");
+ c2c_hists__reinit(c2c_hists, c2c.cl_output, c2c.cl_resort);
hists__collapse_resort(&c2c_hists->hists, NULL);
hists__output_resort_cb(&c2c_hists->hists, NULL, filter_cb);
@@ -2001,6 +1993,7 @@ static void print_c2c_info(FILE *out, struct perf_session *session)
}
fprintf(out, " Cachelines sort on : %s HITMs\n",
c2c.display == DISPLAY_LCL ? "Local" : "Remote");
+ fprintf(out, " Cacheline data grouping : %s\n", c2c.cl_sort);
}
static void perf_c2c__hists_fprintf(FILE *out, struct perf_session *session)
@@ -2280,6 +2273,89 @@ static int setup_display(const char *str)
return 0;
}
+#define for_each_token(__tok, __buf, __sep, __tmp) \
+ for (__tok = strtok_r(__buf, __sep, &__tmp); __tok; \
+ __tok = strtok_r(NULL, __sep, &__tmp))
+
+static int build_cl_output(char *cl_sort)
+{
+ char *tok, *tmp, *buf = strdup(cl_sort);
+ bool add_pid = false;
+ bool add_tid = false;
+ bool add_iaddr = false;
+ bool add_sym = false;
+ bool add_dso = false;
+ bool add_src = false;
+
+ if (!buf)
+ return -ENOMEM;
+
+ for_each_token(tok, buf, ",", tmp) {
+ if (!strcmp(tok, "tid")) {
+ add_tid = true;
+ } else if (!strcmp(tok, "pid")) {
+ add_pid = true;
+ } else if (!strcmp(tok, "iaddr")) {
+ add_iaddr = true;
+ add_sym = true;
+ add_dso = true;
+ add_src = true;
+ } else if (!strcmp(tok, "dso")) {
+ add_dso = true;
+ } else if (strcmp(tok, "offset")) {
+ pr_err("unrecognized sort token: %s\n", tok);
+ return -EINVAL;
+ }
+ }
+
+ if (asprintf(&c2c.cl_output,
+ "%s%s%s%s%s%s%s%s%s",
+ "percent_rmt_hitm,"
+ "percent_lcl_hitm,"
+ "percent_stores_l1hit,"
+ "percent_stores_l1miss,"
+ "offset,",
+ add_pid ? "pid," : "",
+ add_tid ? "tid," : "",
+ add_iaddr ? "iaddr," : "",
+ "mean_rmt,"
+ "mean_lcl,"
+ "mean_load,"
+ "cpucnt,",
+ add_sym ? "symbol," : "",
+ add_dso ? "dso," : "",
+ add_src ? "cl_srcline," : "",
+ "node") < 0)
+ return -ENOMEM;
+
+ c2c.show_src = add_src;
+
+ free(buf);
+ return 0;
+}
+
+static int setup_coalesce(const char *coalesce)
+{
+ const char *c = coalesce ?: coalesce_default;
+
+ if (asprintf(&c2c.cl_sort, "offset,%s", c) < 0)
+ return -ENOMEM;
+
+ if (build_cl_output(c2c.cl_sort))
+ return -1;
+
+ if (asprintf(&c2c.cl_resort, "offset,%s",
+ c2c.display == DISPLAY_RMT ?
+ "rmt_hitm,lcl_hitm" :
+ "lcl_hitm,rmt_hitm") < 0)
+ return -ENOMEM;
+
+ pr_debug("coalesce sort fields: %s\n", c2c.cl_sort);
+ pr_debug("coalesce resort fields: %s\n", c2c.cl_resort);
+ pr_debug("coalesce output fields: %s\n", c2c.cl_output);
+ return 0;
+}
+
static int perf_c2c__report(int argc, const char **argv)
{
struct perf_session *session;
@@ -2289,6 +2365,7 @@ static int perf_c2c__report(int argc, const char **argv)
};
char callchain_default_opt[] = CALLCHAIN_DEFAULT_OPT;
const char *display = NULL;
+ const char *coalesce = NULL;
const struct option c2c_options[] = {
OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
"file", "vmlinux pathname"),
@@ -2308,6 +2385,8 @@ static int perf_c2c__report(int argc, const char **argv)
callchain_help, &parse_callchain_opt,
callchain_default_opt),
OPT_STRING('d', "display", &display, NULL, "lcl,rmt"),
+ OPT_STRING('c', "coalesce", &coalesce, "coalesce fields",
+ "coalesce fields: pid,tid,iaddr,dso"),
OPT_END()
};
int err = 0;
@@ -2336,6 +2415,12 @@ static int perf_c2c__report(int argc, const char **argv)
if (err)
goto out;
+ err = setup_coalesce(coalesce);
+ if (err) {
+ pr_debug("Failed to initialize hists\n");
+ goto out;
+ }
+
err = c2c_hists__init(&c2c.hists, "dcacheline", 2);
if (err) {
pr_debug("Failed to initialize hists\n");
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 45/52] perf c2c report: Recalc width of global sort entries
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (43 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 44/52] perf c2c report: Allow to set cacheline sort fields Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 46/52] perf c2c report: Add cacheline index entry Arnaldo Carvalho de Melo
` (8 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Using resort callbacks to compute the columns' width.
Computing only the global ones, c2c entries have fixed width only.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-zyayvq2u3dzyf3y7i9jza0lw@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 2f3e430ddde0..473dae1baed8 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -1728,11 +1728,21 @@ static inline int valid_hitm_or_store(struct hist_entry *he)
return has_hitm || c2c_he->stats.store;
}
+static void calc_width(struct hist_entry *he)
+{
+ struct c2c_hists *c2c_hists;
+
+ c2c_hists = container_of(he->hists, struct c2c_hists, hists);
+ hists__calc_col_len(&c2c_hists->hists, he);
+}
+
static int filter_cb(struct hist_entry *he)
{
if (c2c.show_src && !he->srcline)
he->srcline = hist_entry__get_srcline(he);
+ calc_width(he);
+
if (!valid_hitm_or_store(he))
he->filtered = HIST_FILTER__C2C;
@@ -1748,6 +1758,8 @@ static int resort_cl_cb(struct hist_entry *he)
c2c_he = container_of(he, struct c2c_hist_entry, he);
c2c_hists = c2c_he->hists;
+ calc_width(he);
+
if (display && c2c_hists) {
c2c_hists__reinit(c2c_hists, c2c.cl_output, c2c.cl_resort);
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 46/52] perf c2c report: Add cacheline index entry
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (44 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 45/52] perf c2c report: Recalc width of global sort entries Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 47/52] perf c2c report: Add support to manage symbol name length Arnaldo Carvalho de Melo
` (7 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
It's convenient to have an index for each cacheline to help discussions
about results over the phone.
Add new 'Index' and 'Num' fields in main and single cacheline tables.
$ perf c2c report
=================================================
Shared Data Cache Line Table
=================================================
#
# Total Lcl ----- LLC Load Hitm -----
# Index Cacheline records Hitm Total Lcl Rmt ...
# ..... .................. ....... ....... ....... ....... .......
#
0 0xffff880036233b40 1 11.11% 1 1 0
1 0xffff88009ccb2900 1 11.11% 1 1 0
2 0xffff8800b5b3bc40 7 11.11% 1 1 0
...
=================================================
Shared Cache Line Distribution Pareto
=================================================
#
# ----- HITM ----- -- Store Refs -- Data address
# Num Rmt Lcl L1 Hit L1 Miss Offset Pid ...
# ..... ....... ....... ....... ....... .................. .......
#
-------------------------------------------------------------
0 0 1 0 0 0xffff880036233b40
-------------------------------------------------------------
0.00% 100.00% 0.00% 0.00% 0x30 0
-------------------------------------------------------------
1 0 1 0 0 0xffff88009ccb2900
-------------------------------------------------------------
0.00% 100.00% 0.00% 0.00% 0x28 549
...
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-4dhfagaz57tvrfjbg8nd2h4u@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 64 +++++++++++++++++++++++++++++++++++++++++++++---
1 file changed, 61 insertions(+), 3 deletions(-)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 473dae1baed8..430360e618b0 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -36,6 +36,7 @@ struct c2c_hist_entry {
struct c2c_stats stats;
unsigned long *cpuset;
struct c2c_stats *node_stats;
+ unsigned int cacheline_idx;
struct compute_stats cstats;
@@ -1088,6 +1089,29 @@ cpucnt_entry(struct perf_hpp_fmt *fmt __maybe_unused, struct perf_hpp *hpp,
return scnprintf(hpp->buf, hpp->size, "%*s", width, buf);
}
+static int
+cl_idx_entry(struct perf_hpp_fmt *fmt __maybe_unused, struct perf_hpp *hpp,
+ struct hist_entry *he)
+{
+ struct c2c_hist_entry *c2c_he;
+ int width = c2c_width(fmt, hpp, he->hists);
+ char buf[10];
+
+ c2c_he = container_of(he, struct c2c_hist_entry, he);
+
+ scnprintf(buf, 10, "%u", c2c_he->cacheline_idx);
+ return scnprintf(hpp->buf, hpp->size, "%*s", width, buf);
+}
+
+static int
+cl_idx_empty_entry(struct perf_hpp_fmt *fmt __maybe_unused, struct perf_hpp *hpp,
+ struct hist_entry *he)
+{
+ int width = c2c_width(fmt, hpp, he->hists);
+
+ return scnprintf(hpp->buf, hpp->size, "%*s", width, "");
+}
+
#define HEADER_LOW(__h) \
{ \
.line[1] = { \
@@ -1433,6 +1457,30 @@ static struct c2c_dimension dim_srcline = {
.se = &sort_srcline,
};
+static struct c2c_dimension dim_dcacheline_idx = {
+ .header = HEADER_LOW("Index"),
+ .name = "cl_idx",
+ .cmp = empty_cmp,
+ .entry = cl_idx_entry,
+ .width = 5,
+};
+
+static struct c2c_dimension dim_dcacheline_num = {
+ .header = HEADER_LOW("Num"),
+ .name = "cl_num",
+ .cmp = empty_cmp,
+ .entry = cl_idx_entry,
+ .width = 5,
+};
+
+static struct c2c_dimension dim_dcacheline_num_empty = {
+ .header = HEADER_LOW("Num"),
+ .name = "cl_num_empty",
+ .cmp = empty_cmp,
+ .entry = cl_idx_empty_entry,
+ .width = 5,
+};
+
static struct c2c_dimension *dimensions[] = {
&dim_dcacheline,
&dim_offset,
@@ -1472,6 +1520,9 @@ static struct c2c_dimension *dimensions[] = {
&dim_mean_load,
&dim_cpucnt,
&dim_srcline,
+ &dim_dcacheline_idx,
+ &dim_dcacheline_num,
+ &dim_dcacheline_num_empty,
NULL,
};
@@ -1761,6 +1812,10 @@ static int resort_cl_cb(struct hist_entry *he)
calc_width(he);
if (display && c2c_hists) {
+ static unsigned int idx;
+
+ c2c_he->cacheline_idx = idx++;
+
c2c_hists__reinit(c2c_hists, c2c.cl_output, c2c.cl_resort);
hists__collapse_resort(&c2c_hists->hists, NULL);
@@ -1948,10 +2003,10 @@ static void print_cacheline(struct c2c_hists *c2c_hists,
fprintf(out, "\n");
}
- fprintf(out, " ------------------------------------------------------\n");
+ fprintf(out, " -------------------------------------------------------------\n");
__hist_entry__snprintf(he_cl, &hpp, hpp_list);
fprintf(out, "%s\n", bf);
- fprintf(out, " ------------------------------------------------------\n");
+ fprintf(out, " -------------------------------------------------------------\n");
hists__fprintf(&c2c_hists->hists, false, 0, 0, 0, out, true);
}
@@ -1964,6 +2019,7 @@ static void print_pareto(FILE *out)
perf_hpp_list__init(&hpp_list);
ret = hpp_list__parse(&hpp_list,
+ "cl_num,"
"cl_rmt_hitm,"
"cl_lcl_hitm,"
"cl_stores_l1hit,"
@@ -2321,7 +2377,8 @@ static int build_cl_output(char *cl_sort)
}
if (asprintf(&c2c.cl_output,
- "%s%s%s%s%s%s%s%s%s",
+ "%s%s%s%s%s%s%s%s%s%s",
+ c2c.use_stdio ? "cl_num_empty," : "",
"percent_rmt_hitm,"
"percent_lcl_hitm,"
"percent_stores_l1hit,"
@@ -2470,6 +2527,7 @@ static int perf_c2c__report(int argc, const char **argv)
}
c2c_hists__reinit(&c2c.hists,
+ "cl_idx,"
"dcacheline,"
"tot_recs,"
"percent_hitm,"
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 47/52] perf c2c report: Add support to manage symbol name length
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (45 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 46/52] perf c2c report: Add cacheline index entry Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 48/52] perf c2c report: Iterate node display in browser Arnaldo Carvalho de Melo
` (6 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
The width of symbol and source line entries could get really long
and not convenient to display. Adding support to display only
patrt of such strings and possibility to switch to full length
by uing --full-symbols option or 's' key in TUI browser.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-yxf5hfteyfaoi8xrgczqtyha@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 33 ++++++++++++++++++++++++++++++++-
1 file changed, 32 insertions(+), 1 deletion(-)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 430360e618b0..00d1620dc2bf 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -62,6 +62,7 @@ struct perf_c2c {
bool show_src;
bool use_stdio;
bool stats_only;
+ bool symbol_full;
/* HITM shared clines stats */
struct c2c_stats hitm_stats;
@@ -336,6 +337,21 @@ struct c2c_fmt {
struct c2c_dimension *dim;
};
+#define SYMBOL_WIDTH 30
+
+static struct c2c_dimension dim_symbol;
+static struct c2c_dimension dim_srcline;
+
+static int symbol_width(struct hists *hists, struct sort_entry *se)
+{
+ int width = hists__col_len(hists, se->se_width_idx);
+
+ if (!c2c.symbol_full)
+ width = MIN(width, SYMBOL_WIDTH);
+
+ return width;
+}
+
static int c2c_width(struct perf_hpp_fmt *fmt,
struct perf_hpp *hpp __maybe_unused,
struct hists *hists __maybe_unused)
@@ -346,6 +362,9 @@ static int c2c_width(struct perf_hpp_fmt *fmt,
c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
dim = c2c_fmt->dim;
+ if (dim == &dim_symbol || dim == &dim_srcline)
+ return symbol_width(hists, dim->se);
+
return dim->se ? hists__col_len(hists, dim->se->se_width_idx) :
c2c_fmt->dim->width;
}
@@ -1563,9 +1582,13 @@ static int c2c_se_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
struct c2c_dimension *dim = c2c_fmt->dim;
size_t len = fmt->user_len;
- if (!len)
+ if (!len) {
len = hists__col_len(he->hists, dim->se->se_width_idx);
+ if (dim == &dim_symbol || dim == &dim_srcline)
+ len = symbol_width(he->hists, dim->se);
+ }
+
return dim->se->se_snprintf(he, hpp->buf, hpp->size, len);
}
@@ -2159,6 +2182,9 @@ static int perf_c2c__browse_cacheline(struct hist_entry *he)
struct hist_browser *browser;
int key = -1;
+ /* Display compact version first. */
+ c2c.symbol_full = false;
+
c2c_he = container_of(he, struct c2c_hist_entry, he);
c2c_hists = c2c_he->hists;
@@ -2178,6 +2204,9 @@ static int perf_c2c__browse_cacheline(struct hist_entry *he)
key = hist_browser__run(browser, "help");
switch (key) {
+ case 's':
+ c2c.symbol_full = !c2c.symbol_full;
+ break;
case 'q':
goto out;
default:
@@ -2449,6 +2478,8 @@ static int perf_c2c__report(int argc, const char **argv)
#endif
OPT_BOOLEAN(0, "stats", &c2c.stats_only,
"Use the stdio interface"),
+ OPT_BOOLEAN(0, "full-symbols", &c2c.symbol_full,
+ "Display full length of symbols"),
OPT_CALLBACK_DEFAULT('g', "call-graph", &callchain_param,
"print_type,threshold[,print_limit],order,sort_key[,branch],value",
callchain_help, &parse_callchain_opt,
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 48/52] perf c2c report: Iterate node display in browser
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (46 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 47/52] perf c2c report: Add support to manage symbol name length Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 49/52] perf c2c report: Add help windows Arnaldo Carvalho de Melo
` (5 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Adding TUI support to switch between Node entry versions
in real time with 'n' key.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-xqbw4h4dxig54wff7fd14lao@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 00d1620dc2bf..27eef205a774 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -2207,6 +2207,10 @@ static int perf_c2c__browse_cacheline(struct hist_entry *he)
case 's':
c2c.symbol_full = !c2c.symbol_full;
break;
+ case 'n':
+ c2c.node_info = (c2c.node_info + 1) % 3;
+ setup_nodes_header();
+ break;
case 'q':
goto out;
default:
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 49/52] perf c2c report: Add help windows
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (47 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 48/52] perf c2c report: Iterate node display in browser Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 50/52] perf c2c: Add man page and credits Arnaldo Carvalho de Melo
` (4 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Adding help windows to display key/action mappings
for both browsers.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-zni4apopx6a9eyxsosm1ebh1@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 19 +++++++++++++++++--
1 file changed, 17 insertions(+), 2 deletions(-)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 27eef205a774..3fc18264d4d1 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -2181,6 +2181,11 @@ static int perf_c2c__browse_cacheline(struct hist_entry *he)
struct c2c_cacheline_browser *cl_browser;
struct hist_browser *browser;
int key = -1;
+ const char help[] =
+ " ENTER Togle callchains (if present) \n"
+ " n Togle Node details info \n"
+ " s Togle full lenght of symbol and source line columns \n"
+ " q Return back to cacheline list \n";
/* Display compact version first. */
c2c.symbol_full = false;
@@ -2201,7 +2206,7 @@ static int perf_c2c__browse_cacheline(struct hist_entry *he)
c2c_browser__update_nr_entries(browser);
while (1) {
- key = hist_browser__run(browser, "help");
+ key = hist_browser__run(browser, "? - help");
switch (key) {
case 's':
@@ -2213,6 +2218,9 @@ static int perf_c2c__browse_cacheline(struct hist_entry *he)
break;
case 'q':
goto out;
+ case '?':
+ ui_browser__help_window(&browser->b, help);
+ break;
default:
break;
}
@@ -2251,6 +2259,10 @@ static int perf_c2c__hists_browse(struct hists *hists)
{
struct hist_browser *browser;
int key = -1;
+ const char help[] =
+ " d Display cacheline details \n"
+ " ENTER Togle callchains (if present) \n"
+ " q Quit \n";
browser = perf_c2c_browser__new(hists);
if (browser == NULL)
@@ -2263,7 +2275,7 @@ static int perf_c2c__hists_browse(struct hists *hists)
c2c_browser__update_nr_entries(browser);
while (1) {
- key = hist_browser__run(browser, "help");
+ key = hist_browser__run(browser, "? - help");
switch (key) {
case 'q':
@@ -2271,6 +2283,9 @@ static int perf_c2c__hists_browse(struct hists *hists)
case 'd':
perf_c2c__browse_cacheline(browser->he_selection);
break;
+ case '?':
+ ui_browser__help_window(&browser->b, help);
+ break;
default:
break;
}
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 50/52] perf c2c: Add man page and credits
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (48 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 49/52] perf c2c report: Add help windows Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 51/52] perf c2c report: Add --no-source option Arnaldo Carvalho de Melo
` (3 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Add man page for c2c command and credits to builtin-c2c.c file.
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-twbp391v8v9f5idp584hlfov@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/Documentation/perf-c2c.txt | 276 ++++++++++++++++++++++++++++++++++
tools/perf/builtin-c2c.c | 11 ++
2 files changed, 287 insertions(+)
create mode 100644 tools/perf/Documentation/perf-c2c.txt
diff --git a/tools/perf/Documentation/perf-c2c.txt b/tools/perf/Documentation/perf-c2c.txt
new file mode 100644
index 000000000000..ba2f4de399c3
--- /dev/null
+++ b/tools/perf/Documentation/perf-c2c.txt
@@ -0,0 +1,276 @@
+perf-c2c(1)
+===========
+
+NAME
+----
+perf-c2c - Shared Data C2C/HITM Analyzer.
+
+SYNOPSIS
+--------
+[verse]
+'perf c2c record' [<options>] <command>
+'perf c2c record' [<options>] -- [<record command options>] <command>
+'perf c2c report' [<options>]
+
+DESCRIPTION
+-----------
+C2C stands for Cache To Cache.
+
+The perf c2c tool provides means for Shared Data C2C/HITM analysis. It allows
+you to track down the cacheline contentions.
+
+The tool is based on x86's load latency and precise store facility events
+provided by Intel CPUs. These events provide:
+ - memory address of the access
+ - type of the access (load and store details)
+ - latency (in cycles) of the load access
+
+The c2c tool provide means to record this data and report back access details
+for cachelines with highest contention - highest number of HITM accesses.
+
+The basic workflow with this tool follows the standard record/report phase.
+User uses the record command to record events data and report command to
+display it.
+
+
+RECORD OPTIONS
+--------------
+-e::
+--event=::
+ Select the PMU event. Use 'perf mem record -e list'
+ to list available events.
+
+-v::
+--verbose::
+ Be more verbose (show counter open errors, etc).
+
+-l::
+--ldlat::
+ Configure mem-loads latency.
+
+-k::
+--all-kernel::
+ Configure all used events to run in kernel space.
+
+-u::
+--all-user::
+ Configure all used events to run in user space.
+
+REPORT OPTIONS
+--------------
+-k::
+--vmlinux=<file>::
+ vmlinux pathname
+
+-v::
+--verbose::
+ Be more verbose (show counter open errors, etc).
+
+-i::
+--input::
+ Specify the input file to process.
+
+-N::
+--node-info::
+ Show extra node info in report (see NODE INFO section)
+
+-c::
+--coalesce::
+ Specify sorintg fields for single cacheline display.
+ Following fields are available: tid,pid,iaddr,dso
+ (see COALESCE)
+
+-g::
+--call-graph::
+ Setup callchains parameters.
+ Please refer to perf-report man page for details.
+
+--stdio::
+ Force the stdio output (see STDIO OUTPUT)
+
+--stats::
+ Display only statistic tables and force stdio mode.
+
+--full-symbols::
+ Display full length of symbols.
+
+C2C RECORD
+----------
+The perf c2c record command setup options related to HITM cacheline analysis
+and calls standard perf record command.
+
+Following perf record options are configured by default:
+(check perf record man page for details)
+
+ -W,-d,--sample-cpu
+
+Unless specified otherwise with '-e' option, following events are monitored by
+default:
+
+ cpu/mem-loads,ldlat=30/P
+ cpu/mem-stores/P
+
+User can pass any 'perf record' option behind '--' mark, like (to enable
+callchains and system wide monitoring):
+
+ $ perf c2c record -- -g -a
+
+Please check RECORD OPTIONS section for specific c2c record options.
+
+C2C REPORT
+----------
+The perf c2c report command displays shared data analysis. It comes in two
+display modes: stdio and tui (default).
+
+The report command workflow is following:
+ - sort all the data based on the cacheline address
+ - store access details for each cacheline
+ - sort all cachelines based on user settings
+ - display data
+
+In general perf report output consist of 2 basic views:
+ 1) most expensive cachelines list
+ 2) offsets details for each cacheline
+
+For each cacheline in the 1) list we display following data:
+(Both stdio and TUI modes follow the same fields output)
+
+ Index
+ - zero based index to identify the cacheline
+
+ Cacheline
+ - cacheline address (hex number)
+
+ Total records
+ - sum of all cachelines accesses
+
+ Rmt/Lcl Hitm
+ - cacheline percentage of all Remote/Local HITM accesses
+
+ LLC Load Hitm - Total, Lcl, Rmt
+ - count of Total/Local/Remote load HITMs
+
+ Store Reference - Total, L1Hit, L1Miss
+ Total - all store accesses
+ L1Hit - store accesses that hit L1
+ L1Hit - store accesses that missed L1
+
+ Load Dram
+ - count of local and remote DRAM accesses
+
+ LLC Ld Miss
+ - count of all accesses that missed LLC
+
+ Total Loads
+ - sum of all load accesses
+
+ Core Load Hit - FB, L1, L2
+ - count of load hits in FB (Fill Buffer), L1 and L2 cache
+
+ LLC Load Hit - Llc, Rmt
+ - count of LLC and Remote load hits
+
+For each offset in the 2) list we display following data:
+
+ HITM - Rmt, Lcl
+ - % of Remote/Local HITM accesses for given offset within cacheline
+
+ Store Refs - L1 Hit, L1 Miss
+ - % of store accesses that hit/missed L1 for given offset within cacheline
+
+ Data address - Offset
+ - offset address
+
+ Pid
+ - pid of the process responsible for the accesses
+
+ Tid
+ - tid of the process responsible for the accesses
+
+ Code address
+ - code address responsible for the accesses
+
+ cycles - rmt hitm, lcl hitm, load
+ - sum of cycles for given accesses - Remote/Local HITM and generic load
+
+ cpu cnt
+ - number of cpus that participated on the access
+
+ Symbol
+ - code symbol related to the 'Code address' value
+
+ Shared Object
+ - shared object name related to the 'Code address' value
+
+ Source:Line
+ - source information related to the 'Code address' value
+
+ Node
+ - nodes participating on the access (see NODE INFO section)
+
+NODE INFO
+---------
+The 'Node' field displays nodes that accesses given cacheline
+offset. Its output comes in 3 flavors:
+ - node IDs separated by ','
+ - node IDs with stats for each ID, in following format:
+ Node{cpus %hitms %stores}
+ - node IDs with list of affected CPUs in following format:
+ Node{cpu list}
+
+User can switch between above flavors with -N option or
+use 'n' key to interactively switch in TUI mode.
+
+COALESCE
+--------
+User can specify how to sort offsets for cacheline.
+
+Following fields are available and governs the final
+output fields set for caheline offsets output:
+
+ tid - coalesced by process TIDs
+ pid - coalesced by process PIDs
+ iaddr - coalesced by code address, following fields are displayed:
+ Code address, Code symbol, Shared Object, Source line
+ dso - coalesced by shared object
+
+By default the coalescing is setup with 'pid,tid,iaddr'.
+
+STDIO OUTPUT
+------------
+The stdio output displays data on standard output.
+
+Following tables are displayed:
+ Trace Event Information
+ - overall statistics of memory accesses
+
+ Global Shared Cache Line Event Information
+ - overall statistics on shared cachelines
+
+ Shared Data Cache Line Table
+ - list of most expensive cachelines
+
+ Shared Cache Line Distribution Pareto
+ - list of all accessed offsets for each cacheline
+
+TUI OUTPUT
+----------
+The TUI output provides interactive interface to navigate
+through cachelines list and to display offset details.
+
+For details please refer to the help window by pressing '?' key.
+
+CREDITS
+-------
+Although Don Zickus, Dick Fowles and Joe Mario worked together
+to get this implemented, we got lots of early help from Arnaldo
+Carvalho de Melo, Stephane Eranian, Jiri Olsa and Andi Kleen.
+
+C2C BLOG
+--------
+Check Joe's blog on c2c tool for detailed use case explanation:
+ https://joemario.github.io/blog/2016/09/01/c2c-blog/
+
+SEE ALSO
+--------
+linkperf:perf-record[1], linkperf:perf-mem[1]
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 3fc18264d4d1..73973da00b31 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -1,3 +1,14 @@
+/*
+ * This is rewrite of original c2c tool introduced in here:
+ * http://lwn.net/Articles/588866/
+ *
+ * The original tool was changed to fit in current perf state.
+ *
+ * Original authors:
+ * Don Zickus <dzickus@redhat.com>
+ * Dick Fowles <fowles@inreach.com>
+ * Joe Mario <jmario@redhat.com>
+ */
#include <linux/compiler.h>
#include <linux/kernel.h>
#include <linux/stringify.h>
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 51/52] perf c2c report: Add --no-source option
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (49 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 50/52] perf c2c: Add man page and credits Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 15:04 ` [PATCH 52/52] perf c2c report: Add --show-all option Arnaldo Carvalho de Melo
` (2 subsequent siblings)
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Add a possibility to disable source line column with new --no-source
option. It source line data could take lot of time to retrieve, so it
could be a performance burden for big data.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-8p6s2727fq8nbsm3it5gix3p@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/Documentation/perf-c2c.txt | 3 +++
tools/perf/builtin-c2c.c | 13 ++++++++-----
2 files changed, 11 insertions(+), 5 deletions(-)
diff --git a/tools/perf/Documentation/perf-c2c.txt b/tools/perf/Documentation/perf-c2c.txt
index ba2f4de399c3..33ed4564a8c0 100644
--- a/tools/perf/Documentation/perf-c2c.txt
+++ b/tools/perf/Documentation/perf-c2c.txt
@@ -94,6 +94,9 @@ REPORT OPTIONS
--full-symbols::
Display full length of symbols.
+--no-source::
+ Do not display Source:Line column.
+
C2C RECORD
----------
The perf c2c record command setup options related to HITM cacheline analysis
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 73973da00b31..6656fcbe8d85 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -2404,7 +2404,7 @@ static int setup_display(const char *str)
for (__tok = strtok_r(__buf, __sep, &__tmp); __tok; \
__tok = strtok_r(NULL, __sep, &__tmp))
-static int build_cl_output(char *cl_sort)
+static int build_cl_output(char *cl_sort, bool no_source)
{
char *tok, *tmp, *buf = strdup(cl_sort);
bool add_pid = false;
@@ -2426,7 +2426,7 @@ static int build_cl_output(char *cl_sort)
add_iaddr = true;
add_sym = true;
add_dso = true;
- add_src = true;
+ add_src = no_source ? false : true;
} else if (!strcmp(tok, "dso")) {
add_dso = true;
} else if (strcmp(tok, "offset")) {
@@ -2462,14 +2462,14 @@ static int build_cl_output(char *cl_sort)
return 0;
}
-static int setup_coalesce(const char *coalesce)
+static int setup_coalesce(const char *coalesce, bool no_source)
{
const char *c = coalesce ?: coalesce_default;
if (asprintf(&c2c.cl_sort, "offset,%s", c) < 0)
return -ENOMEM;
- if (build_cl_output(c2c.cl_sort))
+ if (build_cl_output(c2c.cl_sort, no_source))
return -1;
if (asprintf(&c2c.cl_resort, "offset,%s",
@@ -2494,6 +2494,7 @@ static int perf_c2c__report(int argc, const char **argv)
char callchain_default_opt[] = CALLCHAIN_DEFAULT_OPT;
const char *display = NULL;
const char *coalesce = NULL;
+ bool no_source = false;
const struct option c2c_options[] = {
OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
"file", "vmlinux pathname"),
@@ -2510,6 +2511,8 @@ static int perf_c2c__report(int argc, const char **argv)
"Use the stdio interface"),
OPT_BOOLEAN(0, "full-symbols", &c2c.symbol_full,
"Display full length of symbols"),
+ OPT_BOOLEAN(0, "no-source", &no_source,
+ "Do not display Source Line column"),
OPT_CALLBACK_DEFAULT('g', "call-graph", &callchain_param,
"print_type,threshold[,print_limit],order,sort_key[,branch],value",
callchain_help, &parse_callchain_opt,
@@ -2545,7 +2548,7 @@ static int perf_c2c__report(int argc, const char **argv)
if (err)
goto out;
- err = setup_coalesce(coalesce);
+ err = setup_coalesce(coalesce, no_source);
if (err) {
pr_debug("Failed to initialize hists\n");
goto out;
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* [PATCH 52/52] perf c2c report: Add --show-all option
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (50 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 51/52] perf c2c report: Add --no-source option Arnaldo Carvalho de Melo
@ 2016-10-20 15:04 ` Arnaldo Carvalho de Melo
2016-10-20 23:02 ` [GIT PULL 00/52] New Tool: perf c2c Kim Phillips
2016-10-22 8:28 ` Ingo Molnar
53 siblings, 0 replies; 64+ messages in thread
From: Arnaldo Carvalho de Melo @ 2016-10-20 15:04 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Linux Weekly News, Jiri Olsa, Andi Kleen,
David Ahern, Don Zickus, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: Jiri Olsa <jolsa@kernel.org>
Normally we limit the main list to contain only entries with HITM %
value > 0.0005, but it might be useful to display all captured entries.
Adding --show-all option for that.
Requested-and-Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-nokgjdwikbegec5jzj4mxhqc@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/Documentation/perf-c2c.txt | 3 +++
tools/perf/builtin-c2c.c | 7 +++++--
2 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/tools/perf/Documentation/perf-c2c.txt b/tools/perf/Documentation/perf-c2c.txt
index 33ed4564a8c0..21810d711f5f 100644
--- a/tools/perf/Documentation/perf-c2c.txt
+++ b/tools/perf/Documentation/perf-c2c.txt
@@ -97,6 +97,9 @@ REPORT OPTIONS
--no-source::
Do not display Source:Line column.
+--show-all::
+ Show all captured HITM lines, with no regard to HITM % 0.0005 limit.
+
C2C RECORD
----------
The perf c2c record command setup options related to HITM cacheline analysis
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 6656fcbe8d85..dc4f0636dfa1 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -71,6 +71,7 @@ struct perf_c2c {
int node_info;
bool show_src;
+ bool show_all;
bool use_stdio;
bool stats_only;
bool symbol_full;
@@ -1773,8 +1774,8 @@ static bool he__display(struct hist_entry *he, struct c2c_stats *stats)
struct c2c_hist_entry *c2c_he;
double ld_dist;
- /* XXX Disabled for now, till we get a command line switch to control this */
- return true;
+ if (c2c.show_all)
+ return true;
c2c_he = container_of(he, struct c2c_hist_entry, he);
@@ -2513,6 +2514,8 @@ static int perf_c2c__report(int argc, const char **argv)
"Display full length of symbols"),
OPT_BOOLEAN(0, "no-source", &no_source,
"Do not display Source Line column"),
+ OPT_BOOLEAN(0, "show-all", &c2c.show_all,
+ "Show all captured HITM lines."),
OPT_CALLBACK_DEFAULT('g', "call-graph", &callchain_param,
"print_type,threshold[,print_limit],order,sort_key[,branch],value",
callchain_help, &parse_callchain_opt,
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* Re: [GIT PULL 00/52] New Tool: perf c2c
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (51 preceding siblings ...)
2016-10-20 15:04 ` [PATCH 52/52] perf c2c report: Add --show-all option Arnaldo Carvalho de Melo
@ 2016-10-20 23:02 ` Kim Phillips
2016-10-21 0:17 ` [PATCH] perf c2c report: Properly check data presence in rb_tree loop Jiri Olsa
2016-10-21 0:21 ` [GIT PULL 00/52] New Tool: perf c2c Jiri Olsa
2016-10-22 8:28 ` Ingo Molnar
53 siblings, 2 replies; 64+ messages in thread
From: Kim Phillips @ 2016-10-20 23:02 UTC (permalink / raw)
To: Arnaldo Carvalho de Melo
Cc: Ingo Molnar, linux-kernel, Linux Weekly News, Andi Kleen,
David Ahern, Don Zickus, Jiri Olsa, Joe Mario, Namhyung Kim,
Peter Zijlstra, Arnaldo Carvalho de Melo
On Thu, 20 Oct 2016 12:03:44 -0300
Arnaldo Carvalho de Melo <acme@kernel.org> wrote:
> git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-c2c-for-mingo-20161020
Running this as a normal user may not be the best thing to do, but I'm
pretty sure the TUI c2c report shouldn't sigsegv:
-----
$ tools/perf/perf c2c record -e ldlat-loads lat_mem_rd 16 4096
WARNING: Kernel address maps (/proc/{kallsyms,modules}) are restricted,
check /proc/sys/kernel/kptr_restrict.
Samples in kernel functions may not be resolved if a suitable vmlinux
file is not found in the buildid cache or in the vmlinux path.
Samples in kernel modules won't be resolved at all.
If some relocation was applied (e.g. kexec) symbols may be misresolved
even with a suitable vmlinux or kallsyms file.
Couldn't record kernel reference relocation symbol
Symbol resolution may be skewed if relocation was used (e.g. kexec).
Check /proc/kallsyms permission or run as root.
"stride=4096
0.00391 1.224
0.00586 1.220
0.00781 1.229
0.01172 1.230
0.01562 1.222
0.02344 1.225
0.03125 1.234
0.04688 3.659
0.06250 3.673
0.09375 3.683
0.12500 3.693
0.18750 5.803
0.25000 7.223
0.37500 12.460
0.50000 13.308
0.75000 13.759
1.00000 13.712
1.50000 12.916
2.00000 12.508
3.00000 12.245
4.00000 12.474
6.00000 27.549
8.00000 65.141
12.00000 79.808
16.00000 84.384
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.008 MB perf.data ]
$ tools/perf/perf c2c report --stdio
=================================================
Trace Event Information
=================================================
Total records : 0
Locked Load/Store Operations : 0
Load Operations : 0
Loads - uncacheable : 0
Loads - IO : 0
Loads - Miss : 0
Loads - no mapping : 0
Load Fill Buffer Hit : 0
Load L1D hit : 0
Load L2D hit : 0
Load LLC hit : 0
Load Local HITM : 0
Load Remote HITM : 0
Load Remote HIT : 0
Load Local DRAM : 0
Load Remote DRAM : 0
Load MESI State Exclusive : 0
Load MESI State Shared : 0
Load LLC Misses : 0
LLC Misses to Local DRAM : -nan%
LLC Misses to Remote DRAM : -nan%
LLC Misses to Remote cache (HIT) : -nan%
LLC Misses to Remote cache (HITM) : -nan%
Store Operations : 0
Store - uncacheable : 0
Store - no mapping : 0
Store L1D Hit : 0
Store L1D Miss : 0
No Page Map Rejects : 0
Unable to parse data source : 0
=================================================
Global Shared Cache Line Event Information
=================================================
Total Shared Cache Lines : 0
Load HITs on shared lines : 0
Fill Buffer Hits on shared lines : 0
L1D hits on shared lines : 0
L2D hits on shared lines : 0
LLC hits on shared lines : 0
Locked Access on shared lines : 0
Store HITs on shared lines : 0
Store L1D hits on shared lines : 0
Total Merged records : 0
=================================================
c2c details
=================================================
Events : cpu/mem-loads,ldlat=30/P:u
Cachelines sort on : Remote HITMs
Cacheline data grouping : offset,pid,tid,iaddr
=================================================
Shared Data Cache Line Table
=================================================
#
# Total Rmt ----- LLC Load Hitm ----- ---- Store Reference ---- --- Load Dram ---- LLC T
# Index Cacheline records Hitm Total Lcl Rmt Total L1Hit L1Miss Lcl Rmt Ld Miss L
# ..... .................. ....... ....... ....... ....... ....... ....... ....... ....... ........ ........ ....... ...
#
=================================================
Shared Cache Line Distribution Pareto
=================================================
#
$ tools/perf/perf c2c report
perf: Segmentation fault
-------- backtrace --------
tools/perf/perf[0x56504b]
/lib/x86_64-linux-gnu/libc.so.6(+0x354a0)[0x7facb45794a0]
tools/perf/perf(cmd_c2c+0x13bc)[0x45b2fc]
tools/perf/perf[0x48df61]
tools/perf/perf(main+0x6f6)[0x4249b6]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7facb4564830]
tools/perf/perf(_start+0x29)[0x424aa9]
[0x0]
$ gdb tools/perf/perf
...
(gdb) run c2c report
...
Program received signal SIGSEGV, Segmentation fault.
c2c_browser__update_nr_entries (hb=<optimized out>, hb=<optimized out>) at builtin-c2c.c:2142
2142 nr_entries++;
(gdb) bt
#0 c2c_browser__update_nr_entries (hb=<optimized out>, hb=<optimized out>) at builtin-c2c.c:2142
#1 perf_c2c__hists_browse (hists=0x8b2d90 <c2c+240>) at builtin-c2c.c:2287
#2 perf_c2c_display (session=0x205b1a0) at builtin-c2c.c:2316
#3 perf_c2c__report (argv=<optimized out>, argc=<optimized out>) at builtin-c2c.c:2621
#4 cmd_c2c (argc=<optimized out>, argv=<optimized out>, prefix=<optimized out>) at builtin-c2c.c:2748
#5 0x000000000048df61 in run_builtin (p=p@entry=0x8be168 <commands+72>, argc=argc@entry=2, argv=argv@entry=0x7fffffffddb0)
at perf.c:358
#6 0x00000000004249b6 in handle_internal_command (argv=0x7fffffffddb0, argc=2) at perf.c:420
#7 run_argv (argv=0x7fffffffdb40, argcp=0x7fffffffdb4c) at perf.c:466
#8 main (argc=2, argv=0x7fffffffddb0) at perf.c:610
(gdb)
All the above work fine when run under sudo.
Here are some other details, in case they matter:
$ uname -r
4.7.9+
$ dmesg | grep Perf
[ 0.112348] Performance Events: PEBS fmt3+, 32-deep LBR, Skylake events, full-width counters, Intel PMU driver.
$ make -C tools/perf clean >& /dev/null ; make -C tools/perf |& grep -i warn
Warning: x86_64's syscall_64.tbl differs from kernel
Warning: tools/include/uapi/linux/bpf.h differs from kernel
Warning: tools/arch/x86/lib/memcpy_64.S differs from kernel
Warning: tools/arch/x86/lib/memset_64.S differs from kernel
Warning: tools/arch/arm/include/uapi/asm/kvm.h differs from kernel
Warning: tools/include/uapi/asm-generic/mman-common.h differs from kernel
$ tools/perf/perf config -l
buildid.dir=/dev/null
$ tools/perf/perf mem record -e list
ldlat-loads : available
ldlat-stores : available
$
Thanks,
Kim
^ permalink raw reply [flat|nested] 64+ messages in thread* [PATCH] perf c2c report: Properly check data presence in rb_tree loop
2016-10-20 23:02 ` [GIT PULL 00/52] New Tool: perf c2c Kim Phillips
@ 2016-10-21 0:17 ` Jiri Olsa
2016-10-21 19:23 ` Kim Phillips
2016-10-22 8:49 ` [tip:perf/core] perf c2c report: Add main TUI browser tip-bot for Jiri Olsa
2016-10-21 0:21 ` [GIT PULL 00/52] New Tool: perf c2c Jiri Olsa
1 sibling, 2 replies; 64+ messages in thread
From: Jiri Olsa @ 2016-10-21 0:17 UTC (permalink / raw)
To: Kim Phillips
Cc: Arnaldo Carvalho de Melo, Ingo Molnar, linux-kernel,
Linux Weekly News, Andi Kleen, David Ahern, Don Zickus,
Jiri Olsa, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
On Thu, Oct 20, 2016 at 06:02:24PM -0500, Kim Phillips wrote:
SNIP
> (gdb) bt
> #0 c2c_browser__update_nr_entries (hb=<optimized out>, hb=<optimized out>) at builtin-c2c.c:2142
> #1 perf_c2c__hists_browse (hists=0x8b2d90 <c2c+240>) at builtin-c2c.c:2287
> #2 perf_c2c_display (session=0x205b1a0) at builtin-c2c.c:2316
> #3 perf_c2c__report (argv=<optimized out>, argc=<optimized out>) at builtin-c2c.c:2621
> #4 cmd_c2c (argc=<optimized out>, argv=<optimized out>, prefix=<optimized out>) at builtin-c2c.c:2748
> #5 0x000000000048df61 in run_builtin (p=p@entry=0x8be168 <commands+72>, argc=argc@entry=2, argv=argv@entry=0x7fffffffddb0)
> at perf.c:358
> #6 0x00000000004249b6 in handle_internal_command (argv=0x7fffffffddb0, argc=2) at perf.c:420
> #7 run_argv (argv=0x7fffffffdb40, argcp=0x7fffffffdb4c) at perf.c:466
> #8 main (argc=2, argv=0x7fffffffddb0) at perf.c:610
> (gdb)
>
> All the above work fine when run under sudo.
ugh, stupid mistake.. attached patch fixes that for me
thanks,
jirka
---
Kim reported crash when there's no data stored. In this case
the TUI code crashes in c2c_browser__update_nr_entries, because
we dont check the initial rb_tree node for NULL.
Adding the missing check.
Reported-by: Kim Phillips <kim.phillips@arm.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
tools/perf/builtin-c2c.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index dc4f0636dfa1..c6d0dda594d9 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -2135,14 +2135,14 @@ static void c2c_browser__update_nr_entries(struct hist_browser *hb)
u64 nr_entries = 0;
struct rb_node *nd = rb_first(&hb->hists->entries);
- do {
+ while (nd) {
struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node);
if (!he->filtered)
nr_entries++;
nd = rb_next(nd);
- } while (nd);
+ }
hb->nr_non_filtered_entries = nr_entries;
}
--
2.7.4
^ permalink raw reply related [flat|nested] 64+ messages in thread* Re: [PATCH] perf c2c report: Properly check data presence in rb_tree loop
2016-10-21 0:17 ` [PATCH] perf c2c report: Properly check data presence in rb_tree loop Jiri Olsa
@ 2016-10-21 19:23 ` Kim Phillips
2016-10-22 8:49 ` [tip:perf/core] perf c2c report: Add main TUI browser tip-bot for Jiri Olsa
1 sibling, 0 replies; 64+ messages in thread
From: Kim Phillips @ 2016-10-21 19:23 UTC (permalink / raw)
To: Jiri Olsa
Cc: Arnaldo Carvalho de Melo, Ingo Molnar, linux-kernel,
Linux Weekly News, Andi Kleen, David Ahern, Don Zickus,
Jiri Olsa, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
On Fri, 21 Oct 2016 02:17:06 +0200
Jiri Olsa <jolsa@redhat.com> wrote:
> On Thu, Oct 20, 2016 at 06:02:24PM -0500, Kim Phillips wrote:
>
> SNIP
>
> > (gdb) bt
> > #0 c2c_browser__update_nr_entries (hb=<optimized out>, hb=<optimized out>) at builtin-c2c.c:2142
> > #1 perf_c2c__hists_browse (hists=0x8b2d90 <c2c+240>) at builtin-c2c.c:2287
> > #2 perf_c2c_display (session=0x205b1a0) at builtin-c2c.c:2316
> > #3 perf_c2c__report (argv=<optimized out>, argc=<optimized out>) at builtin-c2c.c:2621
> > #4 cmd_c2c (argc=<optimized out>, argv=<optimized out>, prefix=<optimized out>) at builtin-c2c.c:2748
> > #5 0x000000000048df61 in run_builtin (p=p@entry=0x8be168 <commands+72>, argc=argc@entry=2, argv=argv@entry=0x7fffffffddb0)
> > at perf.c:358
> > #6 0x00000000004249b6 in handle_internal_command (argv=0x7fffffffddb0, argc=2) at perf.c:420
> > #7 run_argv (argv=0x7fffffffdb40, argcp=0x7fffffffdb4c) at perf.c:466
> > #8 main (argc=2, argv=0x7fffffffddb0) at perf.c:610
> > (gdb)
> >
> > All the above work fine when run under sudo.
>
> ugh, stupid mistake.. attached patch fixes that for me
I see it's been merged here now:
https://git.kernel.org/cgit/linux/kernel/git/acme/linux.git/commit/?h=perf/c2c&id=5a1a99cd2e4e15571a74f65facf05f806d5303fd
and the updated perf-c2c-for-mingo-20161021 works, so thanks all.
Kim
^ permalink raw reply [flat|nested] 64+ messages in thread
* [tip:perf/core] perf c2c report: Add main TUI browser
2016-10-21 0:17 ` [PATCH] perf c2c report: Properly check data presence in rb_tree loop Jiri Olsa
2016-10-21 19:23 ` Kim Phillips
@ 2016-10-22 8:49 ` tip-bot for Jiri Olsa
1 sibling, 0 replies; 64+ messages in thread
From: tip-bot for Jiri Olsa @ 2016-10-22 8:49 UTC (permalink / raw)
To: linux-tip-commits
Cc: mingo, a.p.zijlstra, jmario, tglx, kim.phillips, dsahern, acme,
linux-kernel, namhyung, andi, dzickus, jolsa, hpa
Commit-ID: 5a1a99cd2e4e15571a74f65facf05f806d5303fd
Gitweb: http://git.kernel.org/tip/5a1a99cd2e4e15571a74f65facf05f806d5303fd
Author: Jiri Olsa <jolsa@kernel.org>
AuthorDate: Wed, 6 Jan 2016 16:59:02 +0100
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Fri, 21 Oct 2016 10:30:03 -0300
perf c2c report: Add main TUI browser
Add the main cachelines TUI browser. It allows to navigate through
cachelines and display their details and callchains (implemented in the
following patches).
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Kim Phillips <kim.phillips@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-pk632k4h1uwc5t0lqc7k61zg@git.kernel.org
Link: http://lkml.kernel.org/r/20161021001706.GB23970@krava
[ Handle file with no entries, fixing segfault reported by Kim Phillips ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 117 ++++++++++++++++++++++++++++++++++++++++-
tools/perf/ui/browsers/hists.c | 2 +-
tools/perf/ui/browsers/hists.h | 1 +
3 files changed, 117 insertions(+), 3 deletions(-)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 33db26c..34da2a3 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -14,6 +14,7 @@
#include "data.h"
#include "sort.h"
#include <asm/bug.h>
+#include "ui/browsers/hists.h"
struct c2c_hists {
struct hists hists;
@@ -53,6 +54,7 @@ struct perf_c2c {
int node_info;
bool show_src;
+ bool use_stdio;
};
static struct perf_c2c c2c;
@@ -657,6 +659,10 @@ percent_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
c2c_he = container_of(he, struct c2c_hist_entry, he);
per = get_percent(c2c_he);
+#ifdef HAVE_SLANG_SUPPORT
+ if (use_browser)
+ return __hpp__slsmg_color_printf(hpp, "%*.2f%%", width - 1, per);
+#endif
return hpp_color_scnprintf(hpp, "%*.2f%%", width - 1, per);
}
@@ -1077,6 +1083,8 @@ static struct c2c_dimension dim_dcacheline = {
.width = 18,
};
+static struct c2c_header header_offset_tui = HEADER_LOW("Off");
+
static struct c2c_dimension dim_offset = {
.header = HEADER_BOTH("Data address", "Offset"),
.name = "offset",
@@ -1803,6 +1811,100 @@ static void perf_c2c__hists_fprintf(FILE *out)
print_pareto(out);
}
+#ifdef HAVE_SLANG_SUPPORT
+static void c2c_browser__update_nr_entries(struct hist_browser *hb)
+{
+ u64 nr_entries = 0;
+ struct rb_node *nd = rb_first(&hb->hists->entries);
+
+ while (nd) {
+ struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node);
+
+ if (!he->filtered)
+ nr_entries++;
+
+ nd = rb_next(nd);
+ }
+
+ hb->nr_non_filtered_entries = nr_entries;
+}
+
+static int perf_c2c_browser__title(struct hist_browser *browser,
+ char *bf, size_t size)
+{
+ scnprintf(bf, size,
+ "Shared Data Cache Line Table "
+ "(%lu entries)", browser->nr_non_filtered_entries);
+ return 0;
+}
+
+static struct hist_browser*
+perf_c2c_browser__new(struct hists *hists)
+{
+ struct hist_browser *browser = hist_browser__new(hists);
+
+ if (browser) {
+ browser->title = perf_c2c_browser__title;
+ browser->c2c_filter = true;
+ }
+
+ return browser;
+}
+
+static int perf_c2c__hists_browse(struct hists *hists)
+{
+ struct hist_browser *browser;
+ int key = -1;
+
+ browser = perf_c2c_browser__new(hists);
+ if (browser == NULL)
+ return -1;
+
+ /* reset abort key so that it can get Ctrl-C as a key */
+ SLang_reset_tty();
+ SLang_init_tty(0, 0, 0);
+
+ c2c_browser__update_nr_entries(browser);
+
+ while (1) {
+ key = hist_browser__run(browser, "help");
+
+ switch (key) {
+ case 'q':
+ goto out;
+ default:
+ break;
+ }
+ }
+
+out:
+ hist_browser__delete(browser);
+ return 0;
+}
+
+static void perf_c2c_display(void)
+{
+ if (c2c.use_stdio)
+ perf_c2c__hists_fprintf(stdout);
+ else
+ perf_c2c__hists_browse(&c2c.hists.hists);
+}
+#else
+static void perf_c2c_display(void)
+{
+ use_browser = 0;
+ perf_c2c__hists_fprintf(stdout);
+}
+#endif /* HAVE_SLANG_SUPPORT */
+
+static void ui_quirks(void)
+{
+ if (!c2c.use_stdio) {
+ dim_offset.width = 5;
+ dim_offset.header = header_offset_tui;
+ }
+}
+
static int perf_c2c__report(int argc, const char **argv)
{
struct perf_session *session;
@@ -1819,6 +1921,9 @@ static int perf_c2c__report(int argc, const char **argv)
"the input file to process"),
OPT_INCR('N', "node-info", &c2c.node_info,
"show extra node info in report (repeat for more info)"),
+#ifdef HAVE_SLANG_SUPPORT
+ OPT_BOOLEAN(0, "stdio", &c2c.use_stdio, "Use the stdio interface"),
+#endif
OPT_END()
};
int err = 0;
@@ -1828,6 +1933,13 @@ static int perf_c2c__report(int argc, const char **argv)
if (argc)
usage_with_options(report_c2c_usage, c2c_options);
+ if (c2c.use_stdio)
+ use_browser = 0;
+ else
+ use_browser = 1;
+
+ setup_browser(false);
+
if (!input_name || !strlen(input_name))
input_name = "perf.data";
@@ -1886,8 +1998,9 @@ static int perf_c2c__report(int argc, const char **argv)
ui_progress__finish();
- use_browser = 0;
- perf_c2c__hists_fprintf(stdout);
+ ui_quirks();
+
+ perf_c2c_display();
out_session:
perf_session__delete(session);
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 4ffff7b..31d6d5a 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -30,7 +30,7 @@ static struct rb_node *hists__filter_entries(struct rb_node *nd,
static bool hist_browser__has_filter(struct hist_browser *hb)
{
- return hists__has_filter(hb->hists) || hb->min_pcnt || symbol_conf.has_filter;
+ return hists__has_filter(hb->hists) || hb->min_pcnt || symbol_conf.has_filter || hb->c2c_filter;
}
static int hist_browser__get_folding(struct hist_browser *browser)
diff --git a/tools/perf/ui/browsers/hists.h b/tools/perf/ui/browsers/hists.h
index 39bd0f2..23d6acb 100644
--- a/tools/perf/ui/browsers/hists.h
+++ b/tools/perf/ui/browsers/hists.h
@@ -18,6 +18,7 @@ struct hist_browser {
u64 nr_non_filtered_entries;
u64 nr_hierarchy_entries;
u64 nr_callchain_rows;
+ bool c2c_filter;
/* Get title string. */
int (*title)(struct hist_browser *browser,
^ permalink raw reply related [flat|nested] 64+ messages in thread
* Re: [GIT PULL 00/52] New Tool: perf c2c
2016-10-20 23:02 ` [GIT PULL 00/52] New Tool: perf c2c Kim Phillips
2016-10-21 0:17 ` [PATCH] perf c2c report: Properly check data presence in rb_tree loop Jiri Olsa
@ 2016-10-21 0:21 ` Jiri Olsa
1 sibling, 0 replies; 64+ messages in thread
From: Jiri Olsa @ 2016-10-21 0:21 UTC (permalink / raw)
To: Kim Phillips
Cc: Arnaldo Carvalho de Melo, Ingo Molnar, linux-kernel,
Linux Weekly News, Andi Kleen, David Ahern, Don Zickus,
Jiri Olsa, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
On Thu, Oct 20, 2016 at 06:02:24PM -0500, Kim Phillips wrote:
> On Thu, 20 Oct 2016 12:03:44 -0300
> Arnaldo Carvalho de Melo <acme@kernel.org> wrote:
>
> > git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-c2c-for-mingo-20161020
>
> Running this as a normal user may not be the best thing to do, but I'm
> pretty sure the TUI c2c report shouldn't sigsegv:
right, it also helps to have the store event..
we added the 'e' to be able to change events properties (like ldlat,modifiers..)
it wasn't meant to be to specify just single event, because
the c2c report expects both events.. maybe we should limit that
or at least warn
thanks,
jirka
^ permalink raw reply [flat|nested] 64+ messages in thread
* Re: [GIT PULL 00/52] New Tool: perf c2c
2016-10-20 15:03 [GIT PULL 00/52] New Tool: perf c2c Arnaldo Carvalho de Melo
` (52 preceding siblings ...)
2016-10-20 23:02 ` [GIT PULL 00/52] New Tool: perf c2c Kim Phillips
@ 2016-10-22 8:28 ` Ingo Molnar
2016-10-23 11:05 ` Jiri Olsa
53 siblings, 1 reply; 64+ messages in thread
From: Ingo Molnar @ 2016-10-22 8:28 UTC (permalink / raw)
To: Arnaldo Carvalho de Melo
Cc: linux-kernel, Linux Weekly News, Andi Kleen, David Ahern,
Don Zickus, Jiri Olsa, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:
> Hi Ingo,
>
> Please consider pulling into tip/perf/core,
>
> Thanks,
>
> - Arnaldo
>
> The following changes since commit 10b37cb59fa1e61fec1386f324615e0e8202cd87:
>
> Merge tag 'perf-vendor_events-for-mingo-20161018' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-10-19 15:22:26 +0200)
>
> are available in the git repository at:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-c2c-for-mingo-20161020
>
> for you to fetch changes up to 535bbde62701b2bb298063e9dfa007e8a1ff95d1:
>
> perf c2c report: Add --show-all option (2016-10-19 13:18:31 -0300)
>
> ----------------------------------------------------------------
> - The 'perf c2c' tool provides means for Shared Data C2C/HITM analysis.
>
> It allows you to track down cacheline contention. The tool is based
> on x86's load latency and precise store facility events provided by
> Intel CPUs.
>
> It was tested by Joe Mario and has proven to be useful, finding some
> cacheline contentions. Joe also wrote a blog about c2c tool with
> examples:
>
> https://joemario.github.io/blog/2016/09/01/c2c-blog/
>
> Excerpt of the content on this site:
>
> ---
> At a high level, “perf c2c” will show you:
>
> * The cachelines where false sharing was detected.
> * The readers and writers to those cachelines, and the offsets where those accesses occurred.
> * The pid, tid, instruction addr, function name, binary object name for those readers and writers.
> * The source file and line number for each reader and writer.
> * The average load latency for the loads to those cachelines.
> * Which numa nodes the samples a cacheline came from and which CPUs were involved.
>
> Using perf c2c is similar to using the Linux perf tool today.
> First collect data with “perf c2c record” Then generate a report output with “perf c2c report”
> ---
>
> There one finds extensive details on using the tool, with tips on
> reducing the volume of samples while still capturing enough to do
> its job. (Dick Fowles, Joe Mario, Don Zickus, Jiri Olsa)
>
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
>
> ----------------------------------------------------------------
> Jiri Olsa (52):
> perf c2c: Introduce c2c_decode_stats function
> perf c2c: Introduce c2c_add_stats function
> perf c2c: Add c2c command
> perf c2c: Add record subcommand
> perf c2c: Add report subcommand
> perf c2c report: Add dimension support
> perf c2c report: Add sort_entry dimension support
> perf c2c report: Fallback to standard dimensions
> perf c2c report: Add sample processing
> perf c2c report: Add cacheline hists processing
> perf c2c report: Decode c2c_stats for hist entries
> perf c2c report: Add header macros
> perf c2c report: Add 'dcacheline' dimension key
> perf c2c report: Add 'offset' dimension key
> perf c2c report: Add 'iaddr' dimension key
> perf c2c report: Add hitm related dimension keys
> perf c2c report: Add stores related dimension keys
> perf c2c report: Add loads related dimension keys
> perf c2c report: Add llc and remote loads related dimension keys
> perf c2c report: Add llc load miss dimension key
> perf c2c report: Add total record sort key
> perf c2c report: Add total loads sort key
> perf c2c report: Add hitm percent sort key
> perf c2c report: Add hitm/store percent related sort keys
> perf c2c report: Add dram related sort keys
> perf c2c report: Add 'pid' sort key
> perf c2c report: Add 'tid' sort key
> perf c2c report: Add 'symbol' and 'dso' sort keys
> perf c2c report: Add 'node' sort key
> perf c2c report: Add stats related sort keys
> perf c2c report: Add 'cpucnt' sort key
> perf c2c report: Add src line sort key
> perf c2c report: Setup number of header lines for hists
> perf c2c report: Set final resort fields
> perf c2c report: Add stdio output support
> perf c2c report: Add main TUI browser
> perf c2c report: Add TUI cacheline browser
> perf c2c report: Add global stats stdio output
> perf c2c report: Add shared cachelines stats stdio output
> perf c2c report: Add c2c related stats stdio output
> perf c2c report: Allow to report callchains
> perf c2c report: Limit the cachelines table entries
> perf c2c report: Add support to choose local HITMs
> perf c2c report: Allow to set cacheline sort fields
> perf c2c report: Recalc width of global sort entries
> perf c2c report: Add cacheline index entry
> perf c2c report: Add support to manage symbol name length
> perf c2c report: Iterate node display in browser
> perf c2c report: Add help windows
> perf c2c: Add man page and credits
> perf c2c report: Add --no-source option
> perf c2c report: Add --show-all option
>
> tools/perf/Build | 1 +
> tools/perf/Documentation/perf-c2c.txt | 282 ++++
> tools/perf/builtin-c2c.c | 2754 +++++++++++++++++++++++++++++++++
> tools/perf/builtin.h | 1 +
> tools/perf/perf.c | 1 +
> tools/perf/ui/browsers/hists.c | 2 +-
> tools/perf/ui/browsers/hists.h | 1 +
> tools/perf/util/hist.c | 1 +
> tools/perf/util/hist.h | 1 +
> tools/perf/util/mem-events.c | 128 ++
> tools/perf/util/mem-events.h | 37 +
> tools/perf/util/sort.c | 2 +-
> tools/perf/util/sort.h | 1 +
> 13 files changed, 3210 insertions(+), 2 deletions(-)
> create mode 100644 tools/perf/Documentation/perf-c2c.txt
> create mode 100644 tools/perf/builtin-c2c.c
Pulled the perf-c2c-for-mingo-20161021 tag, thanks a lot Arnaldo!
I can see some teething problems. For example if I run it on an older kernel (v4.4
distro kernel), I get this:
triton:~/tip> perf c2c record perf bench sched pipe
# Running 'sched/pipe' benchmark:
# Executed 1000000 pipe operations between two processes
Total time: 12.001 [sec]
12.001919 usecs/op
83320 ops/sec
[ perf record: Woken up 18 times to write data ]
[ perf record: Captured and wrote 5.356 MB perf.data (69804 samples) ]
but there's no 'perf c2c report' TUI output at all:
Shared Data Cache Line Table (0 entries, sorted on remote HITMs)
Total Rmt ----- LLC Load Hitm ----- ---- Store Reference ---- --- Load Dram ---- LLC Total ----- Core Load Hit ----- -- LLC Load Hit -
Index Cacheline records Hitm Total Lcl Rmt Total L1Hit L1Miss Lcl Rmt Ld Miss Loads FB L1 L2 Llc Rm
and just an empty screen.
If I do 'perf report' I get two events:
Available samples
24K cpu/mem-loads,ldlat=30/P
45K cpu/mem-stores/P
and both have some real data.
What am I missing?
Ingo
^ permalink raw reply [flat|nested] 64+ messages in thread* Re: [GIT PULL 00/52] New Tool: perf c2c
2016-10-22 8:28 ` Ingo Molnar
@ 2016-10-23 11:05 ` Jiri Olsa
2016-10-23 23:47 ` Andi Kleen
2016-10-24 9:23 ` Ingo Molnar
0 siblings, 2 replies; 64+ messages in thread
From: Jiri Olsa @ 2016-10-23 11:05 UTC (permalink / raw)
To: Ingo Molnar
Cc: Arnaldo Carvalho de Melo, linux-kernel, Linux Weekly News,
Andi Kleen, David Ahern, Don Zickus, Jiri Olsa, Joe Mario,
Namhyung Kim, Peter Zijlstra, Arnaldo Carvalho de Melo
On Sat, Oct 22, 2016 at 10:28:06AM +0200, Ingo Molnar wrote:
SNIP
> > tools/perf/ui/browsers/hists.h | 1 +
> > tools/perf/util/hist.c | 1 +
> > tools/perf/util/hist.h | 1 +
> > tools/perf/util/mem-events.c | 128 ++
> > tools/perf/util/mem-events.h | 37 +
> > tools/perf/util/sort.c | 2 +-
> > tools/perf/util/sort.h | 1 +
> > 13 files changed, 3210 insertions(+), 2 deletions(-)
> > create mode 100644 tools/perf/Documentation/perf-c2c.txt
> > create mode 100644 tools/perf/builtin-c2c.c
>
> Pulled the perf-c2c-for-mingo-20161021 tag, thanks a lot Arnaldo!
>
> I can see some teething problems. For example if I run it on an older kernel (v4.4
> distro kernel), I get this:
>
> triton:~/tip> perf c2c record perf bench sched pipe
> # Running 'sched/pipe' benchmark:
> # Executed 1000000 pipe operations between two processes
>
> Total time: 12.001 [sec]
>
> 12.001919 usecs/op
> 83320 ops/sec
> [ perf record: Woken up 18 times to write data ]
> [ perf record: Captured and wrote 5.356 MB perf.data (69804 samples) ]
>
> but there's no 'perf c2c report' TUI output at all:
>
> Shared Data Cache Line Table (0 entries, sorted on remote HITMs)
> Total Rmt ----- LLC Load Hitm ----- ---- Store Reference ---- --- Load Dram ---- LLC Total ----- Core Load Hit ----- -- LLC Load Hit -
> Index Cacheline records Hitm Total Lcl Rmt Total L1Hit L1Miss Lcl Rmt Ld Miss Loads FB L1 L2 Llc Rm
>
> and just an empty screen.
>
> If I do 'perf report' I get two events:
>
> Available samples
> 24K cpu/mem-loads,ldlat=30/P
> 45K cpu/mem-stores/P
>
> and both have some real data.
>
> What am I missing?
hm, most likely you did not generate any remote HITMs.. if it was on the laptop?
you might get some results for local HITMs with -d option:
$ perf c2c report -d lcl
the default display/filter is for Remote HITMs.. perhaps we could be
smart enough and switch to local when we found no data for remote
jirka
^ permalink raw reply [flat|nested] 64+ messages in thread
* Re: [GIT PULL 00/52] New Tool: perf c2c
2016-10-23 11:05 ` Jiri Olsa
@ 2016-10-23 23:47 ` Andi Kleen
2016-10-24 6:32 ` Jiri Olsa
2016-10-24 9:23 ` Ingo Molnar
1 sibling, 1 reply; 64+ messages in thread
From: Andi Kleen @ 2016-10-23 23:47 UTC (permalink / raw)
To: Jiri Olsa
Cc: Ingo Molnar, Arnaldo Carvalho de Melo, linux-kernel,
Linux Weekly News, Andi Kleen, David Ahern, Don Zickus,
Jiri Olsa, Joe Mario, Namhyung Kim, Peter Zijlstra,
Arnaldo Carvalho de Melo
> hm, most likely you did not generate any remote HITMs.. if it was on the laptop?
> you might get some results for local HITMs with -d option:
>
> $ perf c2c report -d lcl
>
> the default display/filter is for Remote HITMs.. perhaps we could be
> smart enough and switch to local when we found no data for remote
It would be better to default to local + remote. Even local HITMs can be
a big problem, especially on server chips with many cores.
-Andi
^ permalink raw reply [flat|nested] 64+ messages in thread
* Re: [GIT PULL 00/52] New Tool: perf c2c
2016-10-23 23:47 ` Andi Kleen
@ 2016-10-24 6:32 ` Jiri Olsa
0 siblings, 0 replies; 64+ messages in thread
From: Jiri Olsa @ 2016-10-24 6:32 UTC (permalink / raw)
To: Andi Kleen
Cc: Ingo Molnar, Arnaldo Carvalho de Melo, linux-kernel,
Linux Weekly News, David Ahern, Don Zickus, Jiri Olsa, Joe Mario,
Namhyung Kim, Peter Zijlstra, Arnaldo Carvalho de Melo
On Sun, Oct 23, 2016 at 04:47:19PM -0700, Andi Kleen wrote:
> > hm, most likely you did not generate any remote HITMs.. if it was on the laptop?
> > you might get some results for local HITMs with -d option:
> >
> > $ perf c2c report -d lcl
> >
> > the default display/filter is for Remote HITMs.. perhaps we could be
> > smart enough and switch to local when we found no data for remote
>
> It would be better to default to local + remote. Even local HITMs can be
> a big problem, especially on server chips with many cores.
ok, will check on this, thanks
jirka
^ permalink raw reply [flat|nested] 64+ messages in thread
* Re: [GIT PULL 00/52] New Tool: perf c2c
2016-10-23 11:05 ` Jiri Olsa
2016-10-23 23:47 ` Andi Kleen
@ 2016-10-24 9:23 ` Ingo Molnar
2016-10-24 9:42 ` Jiri Olsa
1 sibling, 1 reply; 64+ messages in thread
From: Ingo Molnar @ 2016-10-24 9:23 UTC (permalink / raw)
To: Jiri Olsa
Cc: Arnaldo Carvalho de Melo, linux-kernel, Linux Weekly News,
Andi Kleen, David Ahern, Don Zickus, Jiri Olsa, Joe Mario,
Namhyung Kim, Peter Zijlstra, Arnaldo Carvalho de Melo
* Jiri Olsa <jolsa@redhat.com> wrote:
> > If I do 'perf report' I get two events:
> >
> > Available samples
> > 24K cpu/mem-loads,ldlat=30/P
> > 45K cpu/mem-stores/P
> >
> > and both have some real data.
> >
> > What am I missing?
>
> hm, most likely you did not generate any remote HITMs.. if it was on the laptop?
Yeah.
> you might get some results for local HITMs with -d option:
>
> $ perf c2c report -d lcl
>
> the default display/filter is for Remote HITMs.. perhaps we could be
> smart enough and switch to local when we found no data for remote
Yeah, this did the trick.
Could we please make sure there's always actionable output by the tool? I.e. it
should either clearly refuse to work (due to lack of hw), or it should produce
something meaningful.
Thanks,
Ingo
^ permalink raw reply [flat|nested] 64+ messages in thread
* Re: [GIT PULL 00/52] New Tool: perf c2c
2016-10-24 9:23 ` Ingo Molnar
@ 2016-10-24 9:42 ` Jiri Olsa
0 siblings, 0 replies; 64+ messages in thread
From: Jiri Olsa @ 2016-10-24 9:42 UTC (permalink / raw)
To: Ingo Molnar
Cc: Arnaldo Carvalho de Melo, linux-kernel, Linux Weekly News,
Andi Kleen, David Ahern, Don Zickus, Jiri Olsa, Joe Mario,
Namhyung Kim, Peter Zijlstra, Arnaldo Carvalho de Melo
On Mon, Oct 24, 2016 at 11:23:28AM +0200, Ingo Molnar wrote:
>
> * Jiri Olsa <jolsa@redhat.com> wrote:
>
> > > If I do 'perf report' I get two events:
> > >
> > > Available samples
> > > 24K cpu/mem-loads,ldlat=30/P
> > > 45K cpu/mem-stores/P
> > >
> > > and both have some real data.
> > >
> > > What am I missing?
> >
> > hm, most likely you did not generate any remote HITMs.. if it was on the laptop?
>
> Yeah.
>
> > you might get some results for local HITMs with -d option:
> >
> > $ perf c2c report -d lcl
> >
> > the default display/filter is for Remote HITMs.. perhaps we could be
> > smart enough and switch to local when we found no data for remote
>
> Yeah, this did the trick.
>
> Could we please make sure there's always actionable output by the tool? I.e. it
> should either clearly refuse to work (due to lack of hw), or it should produce
> something meaningful.
ok, will do
thanks,
jirka
^ permalink raw reply [flat|nested] 64+ messages in thread