add_stats() is a utility function for perf scripts to accumulate a value, and keep track of some statistics. The mean is one of the statistics it keeps track of, but due to a bug, this wasn't being computed properly. This patch makes the computation correct
Signed-off-by: Dima Kogan <d...@secretsauce.net> --- tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py b/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py index 1d95009592eb..3d1f08b8ba19 100644 --- a/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py +++ b/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py @@ -41,7 +41,7 @@ def add_stats(dict, key, value): min = value if value > max: max = value - avg = (avg + value) / 2 + avg = (avg*count + float(value)) / (count + 1) dict[key] = (min, max, avg, count + 1) def clear_term(): -- 2.11.0