From: Namhyung Kim <namhyung@kernel.org>
To: Arnaldo Carvalho de Melo <acme@kernel.org>,
Jiri Olsa <jolsa@kernel.org>,
Peter Zijlstra <peterz@infradead.org>
Cc: Ian Rogers <irogers@google.com>,
Adrian Hunter <adrian.hunter@intel.com>,
Ingo Molnar <mingo@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
linux-perf-users@vger.kernel.org,
Linus Torvalds <torvalds@linux-foundation.org>,
Stephane Eranian <eranian@google.com>,
Masami Hiramatsu <mhiramat@kernel.org>,
linux-toolchains@vger.kernel.org,
linux-trace-devel@vger.kernel.org
Subject: [PATCH 19/48] perf report: Add 'typeoff' sort key
Date: Wed, 11 Oct 2023 20:50:42 -0700 [thread overview]
Message-ID: <20231012035111.676789-20-namhyung@kernel.org> (raw)
In-Reply-To: <20231012035111.676789-1-namhyung@kernel.org>
The typeoff sort key shows the data type name, offset and the name of
the field. This is useful to see which field in the struct is accessed
most frequently.
$ perf report -s type,typeoff --hierarchy --stdio
...
# Overhead Data Type / Data Type Offset
# ............ ............................
#
...
1.23% struct cfs_rq
0.19% struct cfs_rq +404 (throttle_count)
0.19% struct cfs_rq +0 (load.weight)
0.19% struct cfs_rq +336 (leaf_cfs_rq_list.next)
0.09% struct cfs_rq +272 (propagate)
0.09% struct cfs_rq +196 (removed.nr)
0.09% struct cfs_rq +80 (curr)
0.09% struct cfs_rq +544 (lt_b_children_throttled)
0.06% struct cfs_rq +320 (rq)
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
tools/perf/Documentation/perf-report.txt | 1 +
tools/perf/util/annotate.c | 1 +
tools/perf/util/hist.h | 1 +
tools/perf/util/sort.c | 83 +++++++++++++++++++++++-
tools/perf/util/sort.h | 2 +
5 files changed, 87 insertions(+), 1 deletion(-)
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index aec34417090b..b57eb51b47aa 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -119,6 +119,7 @@ OPTIONS
to the previous instruction in cycles. And currently supported only on X86
- simd: Flags describing a SIMD operation. "e" for empty Arm SVE predicate. "p" for partial Arm SVE predicate
- type: Data type of sample memory access.
+ - typeoff: Offset in the data type of sample memory access.
By default, comm, dso and symbol keys are used.
(i.e. --sort comm,dso,symbol)
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index ab942331720d..49d5b61e19e6 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -3679,6 +3679,7 @@ struct annotated_data_type *hist_entry__get_data_type(struct hist_entry *he)
op_loc->offset,
he->stat.nr_events,
he->stat.period);
+ he->mem_type_off = op_loc->offset;
return mem_type;
}
return NULL;
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 9bfed867f288..941176afcebc 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -83,6 +83,7 @@ enum hist_column {
HISTC_ADDR,
HISTC_SIMD,
HISTC_TYPE,
+ HISTC_TYPE_OFFSET,
HISTC_NR_COLS, /* Last entry */
};
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 01300831333e..98eafef282df 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -2146,8 +2146,10 @@ static void sort__type_init(struct hist_entry *he)
return;
he->mem_type = hist_entry__get_data_type(he);
- if (he->mem_type == NULL)
+ if (he->mem_type == NULL) {
he->mem_type = &unknown_type;
+ he->mem_type_off = 0;
+ }
}
static int64_t
@@ -2191,6 +2193,84 @@ struct sort_entry sort_type = {
.se_width_idx = HISTC_TYPE,
};
+/* --sort typeoff */
+
+static int64_t
+sort__typeoff_sort(struct hist_entry *left, struct hist_entry *right)
+{
+ struct annotated_data_type *left_type = left->mem_type;
+ struct annotated_data_type *right_type = right->mem_type;
+ int64_t ret;
+
+ if (!left_type) {
+ sort__type_init(left);
+ left_type = left->mem_type;
+ }
+
+ if (!right_type) {
+ sort__type_init(right);
+ right_type = right->mem_type;
+ }
+
+ ret = strcmp(left_type->self.type_name, right_type->self.type_name);
+ if (ret)
+ return ret;
+ return left->mem_type_off - right->mem_type_off;
+}
+
+static void fill_member_name(char *buf, size_t sz, struct annotated_member *m,
+ int offset, bool first)
+{
+ struct annotated_member *child;
+
+ if (list_empty(&m->children))
+ return;
+
+ list_for_each_entry(child, &m->children, node) {
+ if (child->offset <= offset && offset < child->offset + child->size) {
+ int len = 0;
+
+ /* It can have anonymous struct/union members */
+ if (child->var_name) {
+ len = scnprintf(buf, sz, "%s%s",
+ first ? "" : ".", child->var_name);
+ first = false;
+ }
+
+ fill_member_name(buf + len, sz - len, child, offset, first);
+ return;
+ }
+ }
+}
+
+static int hist_entry__typeoff_snprintf(struct hist_entry *he, char *bf,
+ size_t size, unsigned int width __maybe_unused)
+{
+ struct annotated_data_type *he_type = he->mem_type;
+ char buf[4096];
+
+ buf[0] = '\0';
+ if (list_empty(&he_type->self.children))
+ snprintf(buf, sizeof(buf), "no field");
+ else
+ fill_member_name(buf, sizeof(buf), &he_type->self,
+ he->mem_type_off, true);
+ buf[4095] = '\0';
+
+ return repsep_snprintf(bf, size, "%s %+d (%s)", he_type->self.type_name,
+ he->mem_type_off, buf);
+}
+
+struct sort_entry sort_type_offset = {
+ .se_header = "Data Type Offset",
+ .se_cmp = sort__type_cmp,
+ .se_collapse = sort__typeoff_sort,
+ .se_sort = sort__typeoff_sort,
+ .se_init = sort__type_init,
+ .se_snprintf = hist_entry__typeoff_snprintf,
+ .se_width_idx = HISTC_TYPE_OFFSET,
+};
+
struct sort_dimension {
const char *name;
@@ -2247,6 +2327,7 @@ static struct sort_dimension common_sort_dimensions[] = {
DIM(SORT_GLOBAL_RETIRE_LAT, "retire_lat", sort_global_p_stage_cyc),
DIM(SORT_SIMD, "simd", sort_simd),
DIM(SORT_ANNOTATE_DATA_TYPE, "type", sort_type),
+ DIM(SORT_ANNOTATE_DATA_TYPE_OFFSET, "typeoff", sort_type_offset),
};
#undef DIM
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index aabf0b8331a3..d806adcc1e1e 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -113,6 +113,7 @@ struct hist_entry {
u64 p_stage_cyc;
u8 cpumode;
u8 depth;
+ int mem_type_off;
struct simd_flags simd_flags;
/* We are added by hists__add_dummy_entry. */
@@ -247,6 +248,7 @@ enum sort_type {
SORT_GLOBAL_RETIRE_LAT,
SORT_SIMD,
SORT_ANNOTATE_DATA_TYPE,
+ SORT_ANNOTATE_DATA_TYPE_OFFSET,
/* branch stack specific sort keys */
__SORT_BRANCH_STACK,
--
2.42.0.655.g421f12c284-goog
next prev parent reply other threads:[~2023-10-12 3:52 UTC|newest]
Thread overview: 96+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-12 3:50 [RFC 00/48] perf tools: Introduce data type profiling (v1) Namhyung Kim
2023-10-12 3:50 ` [PATCH 01/48] perf annotate: Move raw_comment and raw_func_start Namhyung Kim
2023-10-12 3:50 ` [PATCH 02/48] perf annotate: Check if operand has multiple regs Namhyung Kim
2023-11-27 19:05 ` Arnaldo Carvalho de Melo
2023-10-12 3:50 ` [PATCH 03/48] perf tools: Add util/debuginfo.[ch] files Namhyung Kim
2023-10-12 3:50 ` [PATCH 04/48] perf dwarf-aux: Fix die_get_typename() for void * Namhyung Kim
2023-11-04 10:52 ` Masami Hiramatsu
2023-10-12 3:50 ` [PATCH 05/48] perf dwarf-aux: Move #ifdef code to the header file Namhyung Kim
2023-11-04 10:59 ` Masami Hiramatsu
2023-10-12 3:50 ` [PATCH 06/48] perf dwarf-aux: Add die_get_scopes() helper Namhyung Kim
2023-11-05 9:50 ` Masami Hiramatsu
2023-10-12 3:50 ` [PATCH 07/48] perf dwarf-aux: Add die_find_variable_by_reg() helper Namhyung Kim
2023-11-05 9:48 ` Masami Hiramatsu
2023-10-12 3:50 ` [PATCH 08/48] perf dwarf-aux: Factor out __die_get_typename() Namhyung Kim
2023-11-05 9:07 ` Masami Hiramatsu
2023-11-06 4:01 ` Namhyung Kim
2023-10-12 3:50 ` [PATCH 09/48] perf dwarf-regs: Add get_dwarf_regnum() Namhyung Kim
2023-11-05 8:36 ` Masami Hiramatsu
2023-11-06 4:12 ` Namhyung Kim
2023-10-12 3:50 ` [PATCH 10/48] perf annotate-data: Add find_data_type() Namhyung Kim
2023-10-12 3:50 ` [PATCH 11/48] perf annotate-data: Add dso->data_types tree Namhyung Kim
2023-10-12 3:50 ` [PATCH 12/48] perf annotate: Factor out evsel__get_arch() Namhyung Kim
2023-10-12 3:50 ` [PATCH 13/48] perf annotate: Add annotate_get_insn_location() Namhyung Kim
2023-10-23 16:38 ` Arnaldo Carvalho de Melo
2023-10-24 19:10 ` Namhyung Kim
2023-10-26 5:26 ` Namhyung Kim
2023-10-26 19:37 ` Arnaldo Carvalho de Melo
2023-10-12 3:50 ` [PATCH 14/48] perf annotate: Implement hist_entry__get_data_type() Namhyung Kim
2023-10-12 3:50 ` [PATCH 15/48] perf report: Add 'type' sort key Namhyung Kim
2023-10-23 16:53 ` Arnaldo Carvalho de Melo
2023-10-24 19:11 ` Namhyung Kim
2023-10-12 3:50 ` [PATCH 16/48] perf report: Support data type profiling Namhyung Kim
2023-10-12 3:50 ` [PATCH 17/48] perf annotate-data: Add member field in the data type Namhyung Kim
2023-10-12 3:50 ` [PATCH 18/48] perf annotate-data: Update sample histogram for type Namhyung Kim
2023-10-12 3:50 ` Namhyung Kim [this message]
2023-10-12 3:50 ` [PATCH 20/48] perf report: Add 'symoff' sort key Namhyung Kim
2023-10-12 3:50 ` [PATCH 21/48] perf annotate: Add --data-type option Namhyung Kim
2023-10-12 3:50 ` [PATCH 22/48] perf annotate: Add --type-stat option for debugging Namhyung Kim
2023-10-23 17:28 ` Arnaldo Carvalho de Melo
2023-10-23 17:40 ` Arnaldo Carvalho de Melo
2023-10-24 19:12 ` Namhyung Kim
2023-10-12 3:50 ` [PATCH 23/48] perf annotate: Add --insn-stat " Namhyung Kim
2023-10-12 3:50 ` [PATCH 24/48] perf annotate-data: Parse 'lock' prefix from llvm-objdump Namhyung Kim
2023-10-12 3:50 ` [PATCH 25/48] perf annotate-data: Handle macro fusion on x86 Namhyung Kim
2023-10-12 3:50 ` [PATCH 26/48] perf annotate-data: Handle array style accesses Namhyung Kim
2023-10-12 3:50 ` [PATCH 27/48] perf annotate-data: Add stack operation pseudo type Namhyung Kim
2023-10-12 3:50 ` [PATCH 28/48] perf dwarf-aux: Add die_find_variable_by_addr() Namhyung Kim
2023-11-06 15:25 ` Masami Hiramatsu
2023-11-09 5:36 ` Namhyung Kim
2023-10-12 3:50 ` [PATCH 29/48] perf annotate-data: Handle PC-relative addressing Namhyung Kim
2023-10-12 3:50 ` [PATCH 30/48] perf annotate-data: Support global variables Namhyung Kim
2023-10-12 3:50 ` [PATCH 31/48] perf dwarf-aux: Add die_get_cfa() Namhyung Kim
2023-11-07 0:50 ` Masami Hiramatsu
2023-11-08 5:28 ` Namhyung Kim
2023-10-12 3:50 ` [PATCH 32/48] perf annotate-data: Support stack variables Namhyung Kim
2023-10-12 3:50 ` [PATCH 33/48] perf dwarf-aux: Check allowed DWARF Ops Namhyung Kim
2023-11-07 9:32 ` Masami Hiramatsu
2023-11-08 5:34 ` Namhyung Kim
2023-10-12 3:50 ` [PATCH 34/48] perf dwarf-aux: Add die_collect_vars() Namhyung Kim
2023-11-08 10:52 ` Masami Hiramatsu
2023-11-09 5:05 ` Namhyung Kim
2023-10-12 3:50 ` [PATCH 35/48] perf dwarf-aux: Handle type transfer for memory access Namhyung Kim
2023-11-08 10:57 ` Masami Hiramatsu
2023-10-12 3:50 ` [PATCH 36/48] perf annotate-data: Introduce struct data_loc_info Namhyung Kim
2023-12-03 16:22 ` Athira Rajeev
2023-12-05 0:10 ` Namhyung Kim
2023-12-05 7:17 ` Athira Rajeev
2023-10-12 3:51 ` [PATCH 37/48] perf map: Add map__objdump_2rip() Namhyung Kim
2023-10-12 3:51 ` [PATCH 38/48] perf annotate: Add annotate_get_basic_blocks() Namhyung Kim
2023-10-12 3:51 ` [PATCH 39/48] perf annotate-data: Maintain variable type info Namhyung Kim
2023-10-12 3:51 ` [PATCH 40/48] perf annotate-data: Add update_insn_state() Namhyung Kim
2023-10-12 3:51 ` [PATCH 41/48] perf annotate-data: Handle global variable access Namhyung Kim
2023-10-12 3:51 ` [PATCH 42/48] perf annotate-data: Handle call instructions Namhyung Kim
2023-10-12 3:51 ` [PATCH 43/48] perf annotate-data: Implement instruction tracking Namhyung Kim
2023-10-12 3:51 ` [PATCH 44/48] perf annotate: Parse x86 segment register location Namhyung Kim
2023-10-12 3:51 ` [PATCH 45/48] perf annotate-data: Handle this-cpu variables in kernel Namhyung Kim
2023-10-12 3:51 ` [PATCH 46/48] perf annotate-data: Track instructions with a this-cpu variable Namhyung Kim
2023-10-12 3:51 ` [PATCH 47/48] perf annotate-data: Add stack canary type Namhyung Kim
2023-10-12 3:51 ` [PATCH 48/48] perf annotate-data: Add debug message Namhyung Kim
2023-10-12 6:03 ` [RFC 00/48] perf tools: Introduce data type profiling (v1) Ingo Molnar
2023-10-12 16:19 ` Namhyung Kim
2023-10-12 18:33 ` Ingo Molnar
2023-10-12 20:45 ` Namhyung Kim
2023-10-12 9:11 ` Peter Zijlstra
2023-10-12 16:41 ` Namhyung Kim
[not found] ` <CADzB+2mu98v9EUsA1Y-wVDSrXT2kznKi87Tb6QdN5y4mMFNsyg@mail.gmail.com>
2023-10-25 5:58 ` Namhyung Kim
2023-10-12 9:15 ` Peter Zijlstra
2023-10-12 16:52 ` Namhyung Kim
2023-10-13 14:15 ` Arnaldo Carvalho de Melo
2023-10-23 21:58 ` Andi Kleen
2023-10-24 19:16 ` Namhyung Kim
2023-10-25 2:09 ` Andi Kleen
2023-10-25 5:51 ` Namhyung Kim
2023-10-25 20:01 ` Andi Kleen
2023-11-08 17:12 ` Joe Mario
2023-11-09 4:48 ` Namhyung Kim
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