perf annotate: Add basic support to event group view
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@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1362462812-30885-6-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
hifive-unleashed-5.1
Namhyung Kim
Arnaldo Carvalho de Melo
parent
bd64fcb880
commit
b1dd443296
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@ -93,6 +93,9 @@ OPTIONS
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--skip-missing::
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Skip symbols that cannot be annotated.
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--group::
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Show event group information together
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SEE ALSO
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--------
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linkperf:perf-record[1], linkperf:perf-report[1]
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@ -232,6 +232,11 @@ static int __cmd_annotate(struct perf_annotate *ann)
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total_nr_samples += nr_samples;
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hists__collapse_resort(hists);
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hists__output_resort(hists);
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if (symbol_conf.event_group &&
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!perf_evsel__is_group_leader(pos))
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continue;
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hists__find_annotations(hists, pos, ann);
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}
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}
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@ -314,6 +319,8 @@ int cmd_annotate(int argc, const char **argv, const char *prefix __maybe_unused)
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"Specify disassembler style (e.g. -M intel for intel syntax)"),
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OPT_STRING(0, "objdump", &objdump_path, "path",
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"objdump binary to use for disassembly and annotations"),
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OPT_BOOLEAN(0, "group", &symbol_conf.event_group,
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"Show event group information together"),
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OPT_END()
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};
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@ -638,7 +638,9 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st
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if (dl->offset != -1) {
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const char *path = NULL;
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double percent;
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double percent, max_percent = 0.0;
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double *ppercents = &percent;
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int i, nr_percent = 1;
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const char *color;
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struct annotation *notes = symbol__annotation(sym);
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s64 offset = dl->offset;
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@ -647,10 +649,27 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st
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next = disasm__get_next_ip_line(¬es->src->source, dl);
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percent = disasm__calc_percent(notes, evsel->idx, offset,
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next ? next->offset : (s64) len,
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&path);
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if (percent < min_pcnt)
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if (symbol_conf.event_group &&
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perf_evsel__is_group_leader(evsel) &&
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evsel->nr_members > 1) {
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nr_percent = evsel->nr_members;
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ppercents = calloc(nr_percent, sizeof(double));
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if (ppercents == NULL)
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return -1;
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}
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for (i = 0; i < nr_percent; i++) {
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percent = disasm__calc_percent(notes,
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evsel->idx + i, offset,
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next ? next->offset : (s64) len,
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&path);
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ppercents[i] = percent;
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if (percent > max_percent)
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max_percent = percent;
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}
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if (max_percent < min_pcnt)
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return -1;
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if (max_lines && printed >= max_lines)
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@ -665,7 +684,7 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st
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}
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}
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color = get_percent_color(percent);
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color = get_percent_color(max_percent);
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/*
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* Also color the filename and line if needed, with
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@ -681,20 +700,35 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st
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}
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}
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color_fprintf(stdout, color, " %7.2f", percent);
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for (i = 0; i < nr_percent; i++) {
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percent = ppercents[i];
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color = get_percent_color(percent);
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color_fprintf(stdout, color, " %7.2f", percent);
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}
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printf(" : ");
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color_fprintf(stdout, PERF_COLOR_MAGENTA, " %" PRIx64 ":", addr);
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color_fprintf(stdout, PERF_COLOR_BLUE, "%s\n", dl->line);
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if (ppercents != &percent)
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free(ppercents);
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} else if (max_lines && printed >= max_lines)
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return 1;
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else {
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int width = 8;
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if (queue)
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return -1;
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if (symbol_conf.event_group &&
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perf_evsel__is_group_leader(evsel))
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width *= evsel->nr_members;
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if (!*dl->line)
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printf(" :\n");
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printf(" %*s:\n", width, " ");
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else
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printf(" : %s\n", dl->line);
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printf(" %*s: %s\n", width, " ", dl->line);
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}
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return 0;
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@ -1077,6 +1111,8 @@ int symbol__annotate_printf(struct symbol *sym, struct map *map,
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int printed = 2, queue_len = 0;
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int more = 0;
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u64 len;
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int width = 8;
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int namelen;
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filename = strdup(dso->long_name);
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if (!filename)
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@ -1088,9 +1124,15 @@ int symbol__annotate_printf(struct symbol *sym, struct map *map,
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d_filename = basename(filename);
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len = symbol__size(sym);
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namelen = strlen(d_filename);
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printf(" Percent | Source code & Disassembly of %s\n", d_filename);
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printf("------------------------------------------------\n");
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if (symbol_conf.event_group && perf_evsel__is_group_leader(evsel))
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width *= evsel->nr_members;
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printf(" %-*.*s| Source code & Disassembly of %s\n",
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width, width, "Percent", d_filename);
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printf("-%-*.*s-------------------------------------\n",
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width+namelen, width+namelen, graph_dotted_line);
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if (verbose)
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symbol__annotate_hits(sym, evsel);
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