Messages in this thread Patch in this message | | | From | Jin Yao <> | Subject | [PATCH] perf stat: Zero ena and run for interval mode | Date | Thu, 9 Apr 2020 15:07:55 +0800 |
| |
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.
Signed-off-by: Jin Yao <yao.jin@linux.intel.com> --- tools/perf/util/stat.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c index 5f26137b8d60..242476eb808c 100644 --- a/tools/perf/util/stat.c +++ b/tools/perf/util/stat.c @@ -368,8 +368,10 @@ 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); -- 2.17.1
| |