diff options
| author | Jin Yao <yao.jin@linux.intel.com> | 2020-04-09 15:07:55 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-07-22 09:33:05 +0200 |
| commit | 033f56f7d3d62cdbdb9f0874602181bb6d24348f (patch) | |
| tree | e9e98ecf38f1f63a36c66c4c11a4ecdae9bf49b9 /tools | |
| parent | c2e29cac6d89642e1090e10a706a8945f64e7855 (diff) | |
perf stat: Zero all the 'ena' and 'run' array slot stats for interval mode
commit 0e0bf1ea1147fcf74eab19c2d3c853cc3740a72f upstream.
As the code comments in perf_stat_process_counter() say, we calculate
counter's data every interval, and the display code shows ps->res_stats
avg value. We need to zero the stats for interval mode.
But the current code only zeros the res_stats[0], it doesn't zero the
res_stats[1] and res_stats[2], which are for ena and run of counter.
This patch zeros the whole res_stats[] for interval mode.
Fixes: 51fd2df1e882 ("perf stat: Fix interval output values")
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20200409070755.17261-1-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/stat.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c index ebdd130557fb..5156aa971fbb 100644 --- a/tools/perf/util/stat.c +++ b/tools/perf/util/stat.c @@ -367,8 +367,10 @@ int perf_stat_process_counter(struct perf_stat_config *config, * interval mode, otherwise overall avg running * averages will be shown for each interval. */ - if (config->interval) - init_stats(ps->res_stats); + if (config->interval) { + for (i = 0; i < 3; i++) + init_stats(&ps->res_stats[i]); + } if (counter->per_pkg) zero_per_pkg(counter); |