summaryrefslogtreecommitdiff
path: root/tools/perf/util/stat.h
diff options
context:
space:
mode:
Diffstat (limited to 'tools/perf/util/stat.h')
-rw-r--r--tools/perf/util/stat.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
index 588367c3c767..ae8ccd7227cf 100644
--- a/tools/perf/util/stat.h
+++ b/tools/perf/util/stat.h
@@ -6,6 +6,7 @@
struct stats
{
double n, mean, M2;
+ u64 max, min;
};
void update_stats(struct stats *stats, u64 val);
@@ -13,4 +14,12 @@ double avg_stats(struct stats *stats);
double stddev_stats(struct stats *stats);
double rel_stddev_stats(double stddev, double avg);
+static inline void init_stats(struct stats *stats)
+{
+ stats->n = 0.0;
+ stats->mean = 0.0;
+ stats->M2 = 0.0;
+ stats->min = (u64) -1;
+ stats->max = 0;
+}
#endif