perf report: Show group description when event group is enabled
When using event group viewer, it's better to show the group description
rather than the leader information alone.
If a leader did not contain any member, it's a non-group event.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
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>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1358845787-1350-17-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 167f770..20ccd57 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1189,6 +1189,21 @@
const struct thread *thread = hists->thread_filter;
unsigned long nr_samples = hists->stats.nr_events[PERF_RECORD_SAMPLE];
u64 nr_events = hists->stats.total_period;
+ struct perf_evsel *evsel = hists_to_evsel(hists);
+ char buf[512];
+ size_t buflen = sizeof(buf);
+
+ if (symbol_conf.event_group && evsel->nr_members > 1) {
+ struct perf_evsel *pos;
+
+ perf_evsel__group_desc(evsel, buf, buflen);
+ ev_name = buf;
+
+ for_each_group_member(pos, evsel) {
+ nr_samples += pos->hists.stats.nr_events[PERF_RECORD_SAMPLE];
+ nr_events += pos->hists.stats.total_period;
+ }
+ }
nr_samples = convert_unit(nr_samples, &unit);
printed = scnprintf(bf, size,
@@ -1585,6 +1600,16 @@
ui_browser__set_color(browser, current_entry ? HE_COLORSET_SELECTED :
HE_COLORSET_NORMAL);
+ if (symbol_conf.event_group && evsel->nr_members > 1) {
+ struct perf_evsel *pos;
+
+ ev_name = perf_evsel__group_name(evsel);
+
+ for_each_group_member(pos, evsel) {
+ nr_events += pos->hists.stats.nr_events[PERF_RECORD_SAMPLE];
+ }
+ }
+
nr_events = convert_unit(nr_events, &unit);
printed = scnprintf(bf, sizeof(bf), "%lu%c%s%s", nr_events,
unit, unit == ' ' ? "" : " ", ev_name);