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Date: Mon, 18 Mar 2013 13:25:10 -0300
From: Arnaldo Carvalho de Melo <acme@...radead.org>
To: Ingo Molnar <mingo@...nel.org>
Cc: linux-kernel@...r.kernel.org, Namhyung Kim <namhyung.kim@....com>,
Namhyung Kim <namhyung@...nel.org>,
Andi Kleen <andi@...stfloor.org>, Jiri Olsa <jolsa@...hat.com>,
Paul Mackerras <paulus@...ba.org>,
Pekka Enberg <penberg@...nel.org>,
Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 25/54] perf annotate: Add basic support to event group view
From: Namhyung Kim <namhyung.kim@....com>
Add --group option to enable event grouping. When enabled, all the
group members information will be shown with the leader so skip
non-leader events.
It only supports --stdio output currently. Later patches will extend
additional features.
$ perf annotate --group --stdio
...
Percent | Source code & Disassembly of libpthread-2.15.so
--------------------------------------------------------------------------------
:
:
:
: Disassembly of section .text:
:
: 000000387dc0aa50 <__pthread_mutex_unlock_usercnt>:
8.08 2.40 5.29 : 387dc0aa50: mov %rdi,%rdx
0.00 0.00 0.00 : 387dc0aa53: mov 0x10(%rdi),%edi
0.00 0.00 0.00 : 387dc0aa56: mov %edi,%eax
0.00 0.80 0.00 : 387dc0aa58: and $0x7f,%eax
3.03 2.40 3.53 : 387dc0aa5b: test $0x7c,%dil
0.00 0.00 0.00 : 387dc0aa5f: jne 387dc0aaa9 <__pthread_mutex_unlock_use
0.00 0.00 0.00 : 387dc0aa61: test %eax,%eax
0.00 0.00 0.00 : 387dc0aa63: jne 387dc0aa85 <__pthread_mutex_unlock_use
0.00 0.00 0.00 : 387dc0aa65: and $0x80,%edi
0.00 0.00 0.00 : 387dc0aa6b: test %esi,%esi
3.03 5.60 7.06 : 387dc0aa6d: movl $0x0,0x8(%rdx)
0.00 0.00 0.59 : 387dc0aa74: je 387dc0aa7a <__pthread_mutex_unlock_use
0.00 0.00 0.00 : 387dc0aa76: subl $0x1,0xc(%rdx)
2.02 5.60 1.18 : 387dc0aa7a: mov %edi,%esi
0.00 0.00 0.00 : 387dc0aa7c: lock decl (%rdx)
83.84 83.20 82.35 : 387dc0aa7f: jne 387dc0aada <_L_unlock_586>
0.00 0.00 0.00 : 387dc0aa81: nop
0.00 0.00 0.00 : 387dc0aa82: xor %eax,%eax
0.00 0.00 0.00 : 387dc0aa84: retq
...
Signed-off-by: Namhyung Kim <namhyung@...nel.org>
Cc: Andi Kleen <andi@...stfloor.org>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Pekka Enberg <penberg@...nel.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Link: http://lkml.kernel.org/r/1362462812-30885-6-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
tools/perf/Documentation/perf-annotate.txt | 3 +
tools/perf/builtin-annotate.c | 7 +++
tools/perf/util/annotate.c | 64 +++++++++++++++++++++++-----
3 files changed, 63 insertions(+), 11 deletions(-)
diff --git a/tools/perf/Documentation/perf-annotate.txt b/tools/perf/Documentation/perf-annotate.txt
index 5ad07ef..e9cd39a 100644
--- a/tools/perf/Documentation/perf-annotate.txt
+++ b/tools/perf/Documentation/perf-annotate.txt
@@ -93,6 +93,9 @@ OPTIONS
--skip-missing::
Skip symbols that cannot be annotated.
+--group::
+ Show event group information together
+
SEE ALSO
--------
linkperf:perf-record[1], linkperf:perf-report[1]
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 2f015a9..ae36f3c 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -232,6 +232,11 @@ static int __cmd_annotate(struct perf_annotate *ann)
total_nr_samples += nr_samples;
hists__collapse_resort(hists);
hists__output_resort(hists);
+
+ if (symbol_conf.event_group &&
+ !perf_evsel__is_group_leader(pos))
+ continue;
+
hists__find_annotations(hists, pos, ann);
}
}
@@ -314,6 +319,8 @@ int cmd_annotate(int argc, const char **argv, const char *prefix __maybe_unused)
"Specify disassembler style (e.g. -M intel for intel syntax)"),
OPT_STRING(0, "objdump", &objdump_path, "path",
"objdump binary to use for disassembly and annotations"),
+ OPT_BOOLEAN(0, "group", &symbol_conf.event_group,
+ "Show event group information together"),
OPT_END()
};
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index ae71325..0955cff 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -638,7 +638,9 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st
if (dl->offset != -1) {
const char *path = NULL;
- double percent;
+ double percent, max_percent = 0.0;
+ double *ppercents = &percent;
+ int i, nr_percent = 1;
const char *color;
struct annotation *notes = symbol__annotation(sym);
s64 offset = dl->offset;
@@ -647,10 +649,27 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st
next = disasm__get_next_ip_line(¬es->src->source, dl);
- percent = disasm__calc_percent(notes, evsel->idx, offset,
- next ? next->offset : (s64) len,
- &path);
- if (percent < min_pcnt)
+ if (symbol_conf.event_group &&
+ perf_evsel__is_group_leader(evsel) &&
+ evsel->nr_members > 1) {
+ nr_percent = evsel->nr_members;
+ ppercents = calloc(nr_percent, sizeof(double));
+ if (ppercents == NULL)
+ return -1;
+ }
+
+ for (i = 0; i < nr_percent; i++) {
+ percent = disasm__calc_percent(notes,
+ evsel->idx + i, offset,
+ next ? next->offset : (s64) len,
+ &path);
+
+ ppercents[i] = percent;
+ if (percent > max_percent)
+ max_percent = percent;
+ }
+
+ if (max_percent < min_pcnt)
return -1;
if (max_lines && printed >= max_lines)
@@ -665,7 +684,7 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st
}
}
- color = get_percent_color(percent);
+ color = get_percent_color(max_percent);
/*
* Also color the filename and line if needed, with
@@ -681,20 +700,35 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st
}
}
- color_fprintf(stdout, color, " %7.2f", percent);
+ for (i = 0; i < nr_percent; i++) {
+ percent = ppercents[i];
+ color = get_percent_color(percent);
+ color_fprintf(stdout, color, " %7.2f", percent);
+ }
+
printf(" : ");
color_fprintf(stdout, PERF_COLOR_MAGENTA, " %" PRIx64 ":", addr);
color_fprintf(stdout, PERF_COLOR_BLUE, "%s\n", dl->line);
+
+ if (ppercents != &percent)
+ free(ppercents);
+
} else if (max_lines && printed >= max_lines)
return 1;
else {
+ int width = 8;
+
if (queue)
return -1;
+ if (symbol_conf.event_group &&
+ perf_evsel__is_group_leader(evsel))
+ width *= evsel->nr_members;
+
if (!*dl->line)
- printf(" :\n");
+ printf(" %*s:\n", width, " ");
else
- printf(" : %s\n", dl->line);
+ printf(" %*s: %s\n", width, " ", dl->line);
}
return 0;
@@ -1077,6 +1111,8 @@ int symbol__annotate_printf(struct symbol *sym, struct map *map,
int printed = 2, queue_len = 0;
int more = 0;
u64 len;
+ int width = 8;
+ int namelen;
filename = strdup(dso->long_name);
if (!filename)
@@ -1088,9 +1124,15 @@ int symbol__annotate_printf(struct symbol *sym, struct map *map,
d_filename = basename(filename);
len = symbol__size(sym);
+ namelen = strlen(d_filename);
+
+ if (symbol_conf.event_group && perf_evsel__is_group_leader(evsel))
+ width *= evsel->nr_members;
- printf(" Percent | Source code & Disassembly of %s\n", d_filename);
- printf("------------------------------------------------\n");
+ printf(" %-*.*s| Source code & Disassembly of %s\n",
+ width, width, "Percent", d_filename);
+ printf("-%-*.*s-------------------------------------\n",
+ width+namelen, width+namelen, graph_dotted_line);
if (verbose)
symbol__annotate_hits(sym, evsel);
--
1.7.1
--
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