From: Andi Kleen ak@linux.intel.com
[ Upstream commit 145c407c808352acd625be793396fd4f33c794f8 ]
After setting up metric groups through the event parser, the metricgroup code looks them up again in the event list.
Make sure we only look up events that haven't been used by some other metric. The data structures currently cannot handle more than one metric per event. This avoids problems with multiple events partially overlapping.
Signed-off-by: Andi Kleen ak@linux.intel.com Acked-by: Jiri Olsa jolsa@kernel.org Cc: Kan Liang kan.liang@linux.intel.com Link: http://lkml.kernel.org/r/20190624193711.35241-2-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/perf/util/stat-shadow.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c index 37363869c9a1..eadc9a2aef16 100644 --- a/tools/perf/util/stat-shadow.c +++ b/tools/perf/util/stat-shadow.c @@ -271,7 +271,7 @@ static struct perf_evsel *perf_stat__find_event(struct perf_evlist *evsel_list, struct perf_evsel *c2;
evlist__for_each_entry (evsel_list, c2) { - if (!strcasecmp(c2->name, name)) + if (!strcasecmp(c2->name, name) && !c2->collect_stat) return c2; } return NULL; @@ -310,7 +310,8 @@ void perf_stat__collect_metric_expr(struct perf_evlist *evsel_list) if (leader) { /* Search in group */ for_each_group_member (oc, leader) { - if (!strcasecmp(oc->name, metric_names[i])) { + if (!strcasecmp(oc->name, metric_names[i]) && + !oc->collect_stat) { found = true; break; }