summaryrefslogtreecommitdiff
path: root/tools/perf/util/metricgroup.c
diff options
context:
space:
mode:
Diffstat (limited to 'tools/perf/util/metricgroup.c')
-rw-r--r--tools/perf/util/metricgroup.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index ee8fcfa115e5..8f7baeabc5cf 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -1372,6 +1372,7 @@ static int parse_ids(bool metric_no_merge, struct perf_pmu *fake_pmu,
*out_evlist = NULL;
if (!metric_no_merge || hashmap__size(ids->ids) == 0) {
+ bool added_event = false;
int i;
/*
* We may fail to share events between metrics because a tool
@@ -1393,8 +1394,16 @@ static int parse_ids(bool metric_no_merge, struct perf_pmu *fake_pmu,
if (!tmp)
return -ENOMEM;
ids__insert(ids->ids, tmp);
+ added_event = true;
}
}
+ if (!added_event && hashmap__size(ids->ids) == 0) {
+ char *tmp = strdup("duration_time");
+
+ if (!tmp)
+ return -ENOMEM;
+ ids__insert(ids->ids, tmp);
+ }
}
ret = metricgroup__build_event_string(&events, ids, modifier,
has_constraint);