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| author | Namhyung Kim <namhyung.kim@lge.com> | 2013-01-22 13:09:47 +0400 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-01-31 20:07:49 +0400 |
| commit | e6ab07d027d47e55d8a5c0f33b16dfdd3e18c96f (patch) | |
| tree | e53b70cb5b0517e1783cd10f888b775a4d8f25f3 | |
| parent | 00c7e1f10c6b8ae8a031f5c6a58ecd15d20c52cb (diff) | |
| download | linux-e6ab07d027d47e55d8a5c0f33b16dfdd3e18c96f.tar.xz | |
perf evlist: Add --group option
Add '-g/--group' option for showing event groups. For simplicity it is
currently not compatible with other options.
$ perf evlist --group
{ref-cycles,cycles}
$ perf evlist
ref-cycles
cycles
Suggested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1358845787-1350-20-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/Documentation/perf-evlist.txt | 4 | ||||
| -rw-r--r-- | tools/perf/builtin-evlist.c | 7 | ||||
| -rw-r--r-- | tools/perf/util/evsel.c | 24 |
3 files changed, 33 insertions, 2 deletions
diff --git a/tools/perf/Documentation/perf-evlist.txt b/tools/perf/Documentation/perf-evlist.txt index 15217345c2fa..1ceb3700ffbb 100644 --- a/tools/perf/Documentation/perf-evlist.txt +++ b/tools/perf/Documentation/perf-evlist.txt @@ -28,6 +28,10 @@ OPTIONS --verbose=:: Show all fields. +-g:: +--group:: + Show event group information. + SEE ALSO -------- linkperf:perf-record[1], linkperf:perf-list[1], diff --git a/tools/perf/builtin-evlist.c b/tools/perf/builtin-evlist.c index 1312a5e03ec7..85a5e35dd147 100644 --- a/tools/perf/builtin-evlist.c +++ b/tools/perf/builtin-evlist.c @@ -39,6 +39,8 @@ int cmd_evlist(int argc, const char **argv, const char *prefix __maybe_unused) OPT_BOOLEAN('F', "freq", &details.freq, "Show the sample frequency"), OPT_BOOLEAN('v', "verbose", &details.verbose, "Show all event attr details"), + OPT_BOOLEAN('g', "group", &symbol_conf.event_group, + "Show event group information"), OPT_END() }; const char * const evlist_usage[] = { @@ -50,5 +52,10 @@ int cmd_evlist(int argc, const char **argv, const char *prefix __maybe_unused) if (argc) usage_with_options(evlist_usage, options); + if (symbol_conf.event_group && (details.verbose || details.freq)) { + pr_err("--group option is not compatible with other options\n"); + usage_with_options(evlist_usage, options); + } + return __cmd_evlist(input_name, &details); } diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 94e74043ded8..a54701504606 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -1389,7 +1389,27 @@ int perf_evsel__fprintf(struct perf_evsel *evsel, struct perf_attr_details *details, FILE *fp) { bool first = true; - int printed = fprintf(fp, "%s", perf_evsel__name(evsel)); + int printed = 0; + + if (symbol_conf.event_group) { + struct perf_evsel *pos; + + if (!perf_evsel__is_group_leader(evsel)) + return 0; + + if (evsel->nr_members > 1) + printed += fprintf(fp, "%s{", evsel->group_name ?: ""); + + printed += fprintf(fp, "%s", perf_evsel__name(evsel)); + for_each_group_member(pos, evsel) + printed += fprintf(fp, ",%s", perf_evsel__name(pos)); + + if (evsel->nr_members > 1) + printed += fprintf(fp, "}"); + goto out; + } + + printed += fprintf(fp, "%s", perf_evsel__name(evsel)); if (details->verbose || details->freq) { printed += comma_fprintf(fp, &first, " sample_freq=%" PRIu64, @@ -1430,7 +1450,7 @@ int perf_evsel__fprintf(struct perf_evsel *evsel, if_print(bp_type); if_print(branch_sample_type); } - +out: fputc('\n', fp); return ++printed; } |