From 8e4bff4cab0ddac6060645b0715210484d02ff40 Mon Sep 17 00:00:00 2001
From: Yuval Adam <_@yuv.al>
Date: Wed, 30 Aug 2017 08:25:59 +0000
Subject: Initial file dump from open source release

---
 tools/perf/util/stat.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 tools/perf/util/stat.h

(limited to 'tools/perf/util/stat.h')

diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
new file mode 100644
index 00000000..588367c3
--- /dev/null
+++ b/tools/perf/util/stat.h
@@ -0,0 +1,16 @@
+#ifndef __PERF_STATS_H
+#define __PERF_STATS_H
+
+#include "types.h"
+
+struct stats
+{
+	double n, mean, M2;
+};
+
+void update_stats(struct stats *stats, u64 val);
+double avg_stats(struct stats *stats);
+double stddev_stats(struct stats *stats);
+double rel_stddev_stats(double stddev, double avg);
+
+#endif
-- 
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