From: tip-bot for Jiri Olsa <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: mingo@kernel.org, kan.liang@intel.com,
linux-kernel@vger.kernel.org, tglx@linutronix.de,
acme@redhat.com, namhyung@kernel.org, jolsa@kernel.org,
dsahern@gmail.com, hpa@zytor.com, a.p.zijlstra@chello.nl
Subject: [tip:perf/core] perf cpu_map: Add cpu_map event synthesize function
Date: Fri, 18 Dec 2015 01:02:06 -0800 [thread overview]
Message-ID: <tip-6c872901af07c41745f1abf5ceac9b3b4d9cdbb6@git.kernel.org> (raw)
In-Reply-To: <1445784728-21732-9-git-send-email-jolsa@kernel.org>
Commit-ID: 6c872901af07c41745f1abf5ceac9b3b4d9cdbb6
Gitweb: http://git.kernel.org/tip/6c872901af07c41745f1abf5ceac9b3b4d9cdbb6
Author: Jiri Olsa <jolsa@kernel.org>
AuthorDate: Sun, 25 Oct 2015 15:51:24 +0100
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Thu, 17 Dec 2015 14:38:18 -0300
perf cpu_map: Add cpu_map event synthesize function
Introduce the perf_event__synthesize_cpu_map function to synthesize a
struct cpu_map.
Added generic interface:
cpu_map_data__alloc
cpu_map_data__synthesize
to make the cpu_map synthesizing usable for other events.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Kan Liang <kan.liang@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1445784728-21732-9-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/tests/Build | 1 +
tools/perf/tests/builtin-test.c | 4 ++
tools/perf/tests/cpumap.c | 71 ++++++++++++++++++++++
tools/perf/tests/tests.h | 1 +
tools/perf/util/event.c | 131 ++++++++++++++++++++++++++++++++++++++++
tools/perf/util/event.h | 8 +++
6 files changed, 216 insertions(+)
diff --git a/tools/perf/tests/Build b/tools/perf/tests/Build
index f23fb7e..7abad28 100644
--- a/tools/perf/tests/Build
+++ b/tools/perf/tests/Build
@@ -34,6 +34,7 @@ perf-y += thread-map.o
perf-y += llvm.o llvm-src-base.o llvm-src-kbuild.o llvm-src-prologue.o
perf-y += bpf.o
perf-y += topology.o
+perf-y += cpumap.o
$(OUTPUT)tests/llvm-src-base.c: tests/bpf-script-example.c tests/Build
$(call rule_mkdir)
diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index 745bdb0..0c3fe28 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -184,6 +184,10 @@ static struct test generic_tests[] = {
.func = test__thread_map_synthesize,
},
{
+ .desc = "Test cpu map synthesize",
+ .func = test__cpu_map_synthesize,
+ },
+ {
.func = NULL,
},
};
diff --git a/tools/perf/tests/cpumap.c b/tools/perf/tests/cpumap.c
new file mode 100644
index 0000000..7154805
--- /dev/null
+++ b/tools/perf/tests/cpumap.c
@@ -0,0 +1,71 @@
+#include "tests.h"
+#include "cpumap.h"
+
+static int process_event_mask(struct perf_tool *tool __maybe_unused,
+ union perf_event *event,
+ struct perf_sample *sample __maybe_unused,
+ struct machine *machine __maybe_unused)
+{
+ struct cpu_map_event *map = &event->cpu_map;
+ struct cpu_map_mask *mask;
+ struct cpu_map_data *data;
+ int i;
+
+ data = &map->data;
+
+ TEST_ASSERT_VAL("wrong type", data->type == PERF_CPU_MAP__MASK);
+
+ mask = (struct cpu_map_mask *)data->data;
+
+ TEST_ASSERT_VAL("wrong nr", mask->nr == 1);
+
+ for (i = 0; i < 20; i++) {
+ TEST_ASSERT_VAL("wrong cpu", test_bit(i, mask->mask));
+ }
+
+ return 0;
+}
+
+static int process_event_cpus(struct perf_tool *tool __maybe_unused,
+ union perf_event *event,
+ struct perf_sample *sample __maybe_unused,
+ struct machine *machine __maybe_unused)
+{
+ struct cpu_map_event *map = &event->cpu_map;
+ struct cpu_map_entries *cpus;
+ struct cpu_map_data *data;
+
+ data = &map->data;
+
+ TEST_ASSERT_VAL("wrong type", data->type == PERF_CPU_MAP__CPUS);
+
+ cpus = (struct cpu_map_entries *)data->data;
+
+ TEST_ASSERT_VAL("wrong nr", cpus->nr == 2);
+ TEST_ASSERT_VAL("wrong cpu", cpus->cpu[0] == 1);
+ TEST_ASSERT_VAL("wrong cpu", cpus->cpu[1] == 256);
+ return 0;
+}
+
+
+int test__cpu_map_synthesize(int subtest __maybe_unused)
+{
+ struct cpu_map *cpus;
+
+ /* This one is better stores in mask. */
+ cpus = cpu_map__new("0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19");
+
+ TEST_ASSERT_VAL("failed to synthesize map",
+ !perf_event__synthesize_cpu_map(NULL, cpus, process_event_mask, NULL));
+
+ cpu_map__put(cpus);
+
+ /* This one is better stores in cpu values. */
+ cpus = cpu_map__new("1,256");
+
+ TEST_ASSERT_VAL("failed to synthesize map",
+ !perf_event__synthesize_cpu_map(NULL, cpus, process_event_cpus, NULL));
+
+ cpu_map__put(cpus);
+ return 0;
+}
diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h
index 3fe52cc..f85160f 100644
--- a/tools/perf/tests/tests.h
+++ b/tools/perf/tests/tests.h
@@ -80,6 +80,7 @@ const char *test__bpf_subtest_get_desc(int subtest);
int test__bpf_subtest_get_nr(void);
int test_session_topology(int subtest);
int test__thread_map_synthesize(int subtest);
+int test__cpu_map_synthesize(int subtest);
#if defined(__arm__) || defined(__aarch64__)
#ifdef HAVE_DWARF_UNWIND_SUPPORT
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 719c078..15d6466 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -737,6 +737,137 @@ int perf_event__synthesize_thread_map2(struct perf_tool *tool,
return err;
}
+static void synthesize_cpus(struct cpu_map_entries *cpus,
+ struct cpu_map *map)
+{
+ int i;
+
+ cpus->nr = map->nr;
+
+ for (i = 0; i < map->nr; i++)
+ cpus->cpu[i] = map->map[i];
+}
+
+static void synthesize_mask(struct cpu_map_mask *mask,
+ struct cpu_map *map, int max)
+{
+ int i;
+
+ mask->nr = BITS_TO_LONGS(max);
+ mask->long_size = sizeof(long);
+
+ for (i = 0; i < map->nr; i++)
+ set_bit(map->map[i], mask->mask);
+}
+
+static size_t cpus_size(struct cpu_map *map)
+{
+ return sizeof(struct cpu_map_entries) + map->nr * sizeof(u16);
+}
+
+static size_t mask_size(struct cpu_map *map, int *max)
+{
+ int i;
+
+ *max = 0;
+
+ for (i = 0; i < map->nr; i++) {
+ /* bit possition of the cpu is + 1 */
+ int bit = map->map[i] + 1;
+
+ if (bit > *max)
+ *max = bit;
+ }
+
+ return sizeof(struct cpu_map_mask) + BITS_TO_LONGS(*max) * sizeof(long);
+}
+
+void *cpu_map_data__alloc(struct cpu_map *map, size_t *size, u16 *type, int *max)
+{
+ size_t size_cpus, size_mask;
+ bool is_dummy = cpu_map__empty(map);
+
+ /*
+ * Both array and mask data have variable size based
+ * on the number of cpus and their actual values.
+ * The size of the 'struct cpu_map_data' is:
+ *
+ * array = size of 'struct cpu_map_entries' +
+ * number of cpus * sizeof(u64)
+ *
+ * mask = size of 'struct cpu_map_mask' +
+ * maximum cpu bit converted to size of longs
+ *
+ * and finaly + the size of 'struct cpu_map_data'.
+ */
+ size_cpus = cpus_size(map);
+ size_mask = mask_size(map, max);
+
+ if (is_dummy || (size_cpus < size_mask)) {
+ *size += size_cpus;
+ *type = PERF_CPU_MAP__CPUS;
+ } else {
+ *size += size_mask;
+ *type = PERF_CPU_MAP__MASK;
+ }
+
+ *size += sizeof(struct cpu_map_data);
+ return zalloc(*size);
+}
+
+void cpu_map_data__synthesize(struct cpu_map_data *data, struct cpu_map *map,
+ u16 type, int max)
+{
+ data->type = type;
+
+ switch (type) {
+ case PERF_CPU_MAP__CPUS:
+ synthesize_cpus((struct cpu_map_entries *) data->data, map);
+ break;
+ case PERF_CPU_MAP__MASK:
+ synthesize_mask((struct cpu_map_mask *) data->data, map, max);
+ default:
+ break;
+ };
+}
+
+static struct cpu_map_event* cpu_map_event__new(struct cpu_map *map)
+{
+ size_t size = sizeof(struct cpu_map_event);
+ struct cpu_map_event *event;
+ int max;
+ u16 type;
+
+ event = cpu_map_data__alloc(map, &size, &type, &max);
+ if (!event)
+ return NULL;
+
+ event->header.type = PERF_RECORD_CPU_MAP;
+ event->header.size = size;
+ event->data.type = type;
+
+ cpu_map_data__synthesize(&event->data, map, type, max);
+ return event;
+}
+
+int perf_event__synthesize_cpu_map(struct perf_tool *tool,
+ struct cpu_map *map,
+ perf_event__handler_t process,
+ struct machine *machine)
+{
+ struct cpu_map_event *event;
+ int err;
+
+ event = cpu_map_event__new(map);
+ if (!event)
+ return -ENOMEM;
+
+ err = process(tool, (union perf_event *) event, NULL, machine);
+
+ free(event);
+ return err;
+}
+
size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp)
{
const char *s;
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 1c82a0e..de18ee0 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -425,6 +425,7 @@ void perf_event__print_totals(void);
struct perf_tool;
struct thread_map;
+struct cpu_map;
typedef int (*perf_event__handler_t)(struct perf_tool *tool,
union perf_event *event,
@@ -440,6 +441,10 @@ int perf_event__synthesize_thread_map2(struct perf_tool *tool,
struct thread_map *threads,
perf_event__handler_t process,
struct machine *machine);
+int perf_event__synthesize_cpu_map(struct perf_tool *tool,
+ struct cpu_map *cpus,
+ perf_event__handler_t process,
+ struct machine *machine);
int perf_event__synthesize_threads(struct perf_tool *tool,
perf_event__handler_t process,
struct machine *machine, bool mmap_data,
@@ -550,4 +555,7 @@ size_t perf_event__fprintf(union perf_event *event, FILE *fp);
u64 kallsyms__get_function_start(const char *kallsyms_filename,
const char *symbol_name);
+void *cpu_map_data__alloc(struct cpu_map *map, size_t *size, u16 *type, int *max);
+void cpu_map_data__synthesize(struct cpu_map_data *data, struct cpu_map *map,
+ u16 type, int max);
#endif /* __PERF_RECORD_H */
next prev parent reply other threads:[~2015-12-18 9:02 UTC|newest]
Thread overview: 99+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-25 14:51 [PATCHv5 00/52] perf stat: Add scripting support Jiri Olsa
2015-10-25 14:51 ` [PATCH 01/52] perf cpu_map: Add cpu_map__empty_new function Jiri Olsa
2015-10-29 9:41 ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 02/52] perf stat: Cache aggregated map entries in extra cpumap Jiri Olsa
2015-10-29 9:41 ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 03/52] perf tools: Add thread_map event Jiri Olsa
2015-10-26 17:42 ` Arnaldo Carvalho de Melo
2015-10-26 17:45 ` Jiri Olsa
2015-10-26 17:48 ` Arnaldo Carvalho de Melo
2015-10-26 17:55 ` Jiri Olsa
2015-10-26 17:57 ` Arnaldo Carvalho de Melo
2015-12-18 9:00 ` [tip:perf/core] perf thread_map: Add thread_map user level event tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 04/52] perf tools: Add thread_map event sythesize function Jiri Olsa
2015-12-18 9:00 ` [tip:perf/core] perf thread_map: " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 05/52] perf tools: Add thread_map__new_event function Jiri Olsa
2015-12-18 9:01 ` [tip:perf/core] perf thread_map: " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 06/52] perf tools: Add perf_event__fprintf_thread_map function Jiri Olsa
2015-12-18 9:01 ` [tip:perf/core] perf thread_map: " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 07/52] perf tools: Add cpu_map event Jiri Olsa
2015-12-18 9:01 ` [tip:perf/core] perf cpu_map: Add cpu_map user level event tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 08/52] perf tools: Add cpu_map event synthesize function Jiri Olsa
2015-12-18 9:02 ` tip-bot for Jiri Olsa [this message]
2015-10-25 14:51 ` [PATCH 09/52] perf tools: Add cpu_map__new_event function Jiri Olsa
2015-12-18 9:02 ` [tip:perf/core] perf cpu_map: " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 10/52] perf tools: Add perf_event__fprintf_cpu_map function Jiri Olsa
2015-12-18 9:02 ` [tip:perf/core] perf cpu_map: " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 11/52] perf tools: Add stat config event Jiri Olsa
2015-10-27 13:16 ` Arnaldo Carvalho de Melo
2015-10-27 13:30 ` Jiri Olsa
2015-10-27 13:44 ` Arnaldo Carvalho de Melo
2015-10-27 13:51 ` Jiri Olsa
2015-10-27 14:13 ` Arnaldo Carvalho de Melo
2015-12-18 9:03 ` [tip:perf/core] perf tools: Add stat config user level event tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 12/52] perf tools: Add stat config event synthesize function Jiri Olsa
2015-12-18 9:03 ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 13/52] perf tools: Add stat config event read function Jiri Olsa
2015-12-18 9:03 ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 14/52] perf tools: Add stat event Jiri Olsa
2015-12-18 9:04 ` [tip:perf/core] perf tools: Add stat user level event tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 15/52] perf tools: Add stat event synthesize function Jiri Olsa
2015-12-18 9:04 ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 16/52] perf tools: Add stat event read function Jiri Olsa
2015-12-18 9:04 ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 17/52] perf tools: Add stat round event Jiri Olsa
2015-12-18 9:05 ` [tip:perf/core] perf tools: Add stat round user level event tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 18/52] perf tools: Add stat round event synthesize function Jiri Olsa
2015-12-18 9:05 ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 19/52] perf tools: Add stat events fprintf functions Jiri Olsa
2015-12-18 9:05 ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 20/52] perf tools: Add event_update event Jiri Olsa
2015-12-18 9:06 ` [tip:perf/core] perf tools: Add event_update user level event tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 21/52] perf tools: Add event_update event unit type Jiri Olsa
2015-12-18 9:06 ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 22/52] perf tools: Add event_update event scale type Jiri Olsa
2015-12-18 9:06 ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 23/52] perf tools: Add event_update event name type Jiri Olsa
2015-12-18 9:07 ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 24/52] perf tools: Add event_update event cpus type Jiri Olsa
2015-12-18 9:07 ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 25/52] perf tools: Add perf_event__fprintf_event_update function Jiri Olsa
2015-12-18 9:07 ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 26/52] perf report: Display newly added events in raw dump Jiri Olsa
2015-12-18 9:07 ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 27/52] perf tools: Introduce stat feature Jiri Olsa
2015-12-18 9:08 ` [tip:perf/core] perf tools: Introduce stat perf.data header feature tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 28/52] perf tools: Move id_offset out of struct perf_evsel union Jiri Olsa
2015-10-29 9:40 ` [tip:perf/core] perf evsel: Move id_offset out of struct perf_evsel union member tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 29/52] perf stat record: Add record command Jiri Olsa
2015-10-27 14:26 ` Arnaldo Carvalho de Melo
2015-10-25 14:51 ` [PATCH 30/52] perf stat record: Initialize record features Jiri Olsa
2015-10-25 14:51 ` [PATCH 31/52] perf stat record: Synthesize stat record data Jiri Olsa
2015-10-27 14:42 ` Arnaldo Carvalho de Melo
2015-10-28 12:15 ` Jiri Olsa
2015-10-28 13:03 ` Jiri Olsa
2015-10-28 13:04 ` Jiri Olsa
2015-10-25 14:51 ` [PATCH 32/52] perf stat record: Store events IDs in perf data file Jiri Olsa
2015-10-25 14:51 ` [PATCH 33/52] perf stat record: Add pipe support for record command Jiri Olsa
2015-10-25 14:51 ` [PATCH 34/52] perf stat record: Write stat events on record Jiri Olsa
2015-10-25 14:51 ` [PATCH 35/52] perf stat record: Write stat round " Jiri Olsa
2015-10-25 14:51 ` [PATCH 36/52] perf stat record: Do not allow record with multiple runs mode Jiri Olsa
2015-10-25 14:51 ` [PATCH 37/52] perf stat record: Synthesize event update events Jiri Olsa
2015-10-25 14:51 ` [PATCH 38/52] perf stat report: Add report command Jiri Olsa
2015-10-25 14:51 ` [PATCH 39/52] perf stat report: Process cpu/threads maps Jiri Olsa
2015-10-25 14:51 ` [PATCH 40/52] perf stat report: Process stat config event Jiri Olsa
2015-10-25 14:51 ` [PATCH 41/52] perf stat report: Add support to initialize aggr_map from file Jiri Olsa
2015-10-25 14:51 ` [PATCH 42/52] perf stat report: Process stat and stat round events Jiri Olsa
2015-10-25 14:51 ` [PATCH 43/52] perf stat report: Process event update events Jiri Olsa
2015-10-25 14:52 ` [PATCH 44/52] perf stat report: Move csv_sep initialization before report command Jiri Olsa
2015-10-25 14:52 ` [PATCH 45/52] perf stat report: Allow to override aggr_mode Jiri Olsa
2015-10-25 14:52 ` [PATCH 46/52] perf script: Process cpu/threads maps Jiri Olsa
2015-10-25 14:52 ` [PATCH 47/52] perf script: Process stat config event Jiri Olsa
2015-10-25 14:52 ` [PATCH 48/52] perf script: Add process_stat/process_stat_interval scripting interface Jiri Olsa
2015-10-25 14:52 ` [PATCH 49/52] perf script: Add stat default handlers Jiri Olsa
2015-10-25 14:52 ` [PATCH 50/52] perf script: Display stat events by default Jiri Olsa
2015-10-25 14:52 ` [PATCH 51/52] perf script: Add python support for stat events Jiri Olsa
2015-10-25 14:52 ` [PATCH 52/52] perf script: Add stat-cpi.py script Jiri Olsa
2015-10-26 17:34 ` [PATCHv5 00/52] perf stat: Add scripting support Arnaldo Carvalho de Melo
2015-10-27 14:24 ` Liang, Kan
2015-10-27 14:48 ` Arnaldo Carvalho de Melo
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