perf report: Show group description when event group is enabled

[platform/adaptation/renesas_rcar/renesas_kernel.git] / tools / perf / builtin-report.c

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 9cc768e..ce518c4 100644 (file)
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -299,6 +299,21 @@ static size_t hists__fprintf_nr_sample_events(struct hists *self,
        char unit;
        unsigned long nr_samples = self->stats.nr_events[PERF_RECORD_SAMPLE];
        u64 nr_events = self->stats.total_period;
+       struct perf_evsel *evsel = hists_to_evsel(self);
+       char buf[512];
+       size_t size = sizeof(buf);
+
+       if (symbol_conf.event_group && evsel->nr_members > 1) {
+               struct perf_evsel *pos;
+
+               perf_evsel__group_desc(evsel, buf, size);
+               evname = 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);
        ret = fprintf(fp, "# Samples: %lu%c", nr_samples, unit);