On Thu, May 14, 2020 at 01:36:38PM +0800, Jin Yao wrote:
SNIP
>
> evlist__for_each_entry(evsel_list, counter) {
> if (counter->err)
> @@ -394,6 +403,7 @@ static void runtime_stat_reset(struct perf_stat_config
> *config)
> static void process_interval(void)
> {
> struct timespec ts, rs;
> + struct stats walltime_nsecs_stats_bak;
>
> clock_gettime(CLOCK_MONOTONIC, &ts);
> diff_timespec(&rs, &ts, &ref_time);
> @@ -407,9 +417,11 @@ static void process_interval(void)
> pr_err("failed to write stat round event\n");
> }
>
> + walltime_nsecs_stats_bak = walltime_nsecs_stats;
> init_stats(&walltime_nsecs_stats);
> update_stats(&walltime_nsecs_stats, stat_config.interval * 1000000);
> print_counters(&rs, 0, NULL);
> + walltime_nsecs_stats = walltime_nsecs_stats_bak;
could we instead of above initialize walltime_nsecs_stats
in the condition below, like:
init_stats(&walltime_nsecs_stats);
update_stats(&walltime_nsecs_stats, stat_config.interval * 1000000);
jirka
> }
>
> static void enable_counters(void)
> @@ -765,6 +777,19 @@ static int __run_perf_stat(int argc, const char **argv,
> int run_idx)
>
> update_stats(&walltime_nsecs_stats, t1 - t0);
>
> + if (interval) {
> + stat_config.interval = 0;
> + stat_config.summary = true;
> +
> + if (stat_config.aggr_mode == AGGR_GLOBAL)
> + perf_evlist__save_aggr_prev_raw_counts(evsel_list);
> +
> + perf_evlist__copy_prev_raw_counts(evsel_list);
> + perf_evlist__reset_prev_raw_counts(evsel_list);
> + runtime_stat_reset(&stat_config);
> + perf_stat__reset_shadow_per_stat(&rt_stat);
> + }
> +
SNIP
