From: Jiri Olsa Date: Wed, 20 Jan 2016 11:56:34 +0000 (+0100) Subject: perf stat: Do not clean event's private stats X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=3f416f22d1e2;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git perf stat: Do not clean event's private stats Mel reported stddev reporting was broken due to following commit: 106a94a0f8c2 ("perf stat: Introduce read_counters function") This commit merged interval and overall counters reading into single read_counters function. The old interval code cleaned the stddev data for some reason (it's never displayed in interval mode) and the mentioned commit kept on cleaning the stddev data in merged function, which resulted in the stddev not being displayed. Removing the wrong stddev data cleanup init_stats call. Reported-and-Tested-by: Mel Gorman Signed-off-by: Jiri Olsa Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Cc: stable@vger.kernel.org # v4.2+ Fixes: 106a94a0f8c2 ("perf stat: Introduce read_counters function") Link: http://lkml.kernel.org/r/1453290995-18485-4-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c index 2f901d15e063..2b58edccd56f 100644 --- a/tools/perf/util/stat.c +++ b/tools/perf/util/stat.c @@ -310,7 +310,6 @@ int perf_stat_process_counter(struct perf_stat_config *config, int i, ret; aggr->val = aggr->ena = aggr->run = 0; - init_stats(ps->res_stats); if (counter->per_pkg) zero_per_pkg(counter);