Messages in this thread | | | Date | Mon, 6 Jul 2020 14:37:43 +0200 | From | Jiri Olsa <> | Subject | Re: [PATCH v9 11/15] perf stat: implement control commands handling |
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On Fri, Jul 03, 2020 at 10:47:22AM +0300, Alexey Budankov wrote:
SNIP
> > while (1) { > if (forks) > @@ -574,11 +610,22 @@ static int dispatch_events(bool forks, int timeout, int interval, int *times, st > if (done || stop || child_exited) > break; > > - nanosleep(ts, NULL); > - if (timeout) > - stop = true; > - else > - stop = handle_interval(interval, times); > + clock_gettime(CLOCK_MONOTONIC, &time_start); > + if (!(evlist__poll(evsel_list, time_to_sleep) > 0)) { /* poll timeout or EINTR */ > + if (timeout) > + stop = true; > + else > + stop = handle_interval(interval, times); > + time_to_sleep = sleep_time; > + } else { /* fd revent */ > + stop = process_evlist(evsel_list, interval, times); > + clock_gettime(CLOCK_MONOTONIC, &time_stop); > + diff_timespec(&time_diff, &time_stop, &time_start); > + time_to_sleep -= time_diff.tv_sec * MSEC_PER_SEC + > + time_diff.tv_nsec / NSEC_PER_MSEC; > + if (time_to_sleep < 0) > + time_to_sleep = 0;
could this computation go to a separate function? something like:
time_to_sleep = compute_tts(time_start, time_stop);
thanks, jirka
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