From: Namhyung Kim Date: Tue, 5 Mar 2013 05:53:25 +0000 (+0900) Subject: perf annotate: Add basic support to event group view X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b1dd443296b4f8c6869eba790eec950f80392aea;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git 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 Cc: Andi Kleen Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Pekka Enberg Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1362462812-30885-6-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- diff --git a/tools/perf/Documentation/perf-annotate.txt b/tools/perf/Documentation/perf-annotate.txt index 5ad07ef417f..e9cd39a92dc 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 2f015a99481..ae36f3cb541 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 ae71325d3dc..0955cff5b0e 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);