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perf intel-pt: Time filter logged perf events

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Change the debug logging (when used with the --time option) to time
filter logged perf events, but allow that to be overridden by using
"d+a" instead of plain "d".

That can reduce the size of the log file.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lore.kernel.org/lkml/20200710151104.15137-10-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter
2020-07-10 18:11:01 +03:00
committed by Arnaldo Carvalho de Melo
parent 8b83fccdd2
commit d4575f5fce
2 changed files with 19 additions and 3 deletions
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19
tools/perf/util/intel-pt.c
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@@ -249,9 +249,22 @@ static void intel_pt_dump_sample(struct perf_session *session,
intel_pt_dump(pt, sample->aux_sample.data, sample->aux_sample.size);
}
static bool intel_pt_log_events(struct intel_pt *pt)
static bool intel_pt_log_events(struct intel_pt *pt, u64 tm)
{
return !(pt->synth_opts.log_minus_flags & AUXTRACE_LOG_FLG_ALL_PERF_EVTS);
struct perf_time_interval *range = pt->synth_opts.ptime_range;
int n = pt->synth_opts.range_num;
if (pt->synth_opts.log_plus_flags & AUXTRACE_LOG_FLG_ALL_PERF_EVTS)
return true;
if (pt->synth_opts.log_minus_flags & AUXTRACE_LOG_FLG_ALL_PERF_EVTS)
return false;
/* perf_time__ranges_skip_sample does not work if time is zero */
if (!tm)
tm = 1;
return !n || !perf_time__ranges_skip_sample(range, n, tm);
}
static int intel_pt_do_fix_overlap(struct intel_pt *pt, struct auxtrace_buffer *a,
@@ -2747,7 +2760,7 @@ static int intel_pt_process_event(struct perf_session *session,
if (!err && event->header.type == PERF_RECORD_TEXT_POKE)
err = intel_pt_text_poke(pt, event);
if (intel_pt_enable_logging && intel_pt_log_events(pt)) {
if (intel_pt_enable_logging && intel_pt_log_events(pt, sample->time)) {
intel_pt_log("event %u: cpu %d time %"PRIu64" tsc %#"PRIx64" ",
event->header.type, sample->cpu, sample->time, timestamp);
intel_pt_log_event(event);