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perf intel-pt: Set no_aux_samples for the tracking event

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The reason of introducing the tracking event (a dummy software event) is
to collect side-band information. Additional sampling is wasteful.
no_aux_samples should be set for tracking event.

Signed-off-by: Kan Liang <kan.liang@intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20170630141656.1626-1-kan.liang@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Kan Liang 2017-06-30 10:16:55 -04:00 committed by Arnaldo Carvalho de Melo
parent 510457ec9d
commit 69d8bd8aa7
1 changed files with 1 additions and 0 deletions
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tools/perf/arch/x86/util/intel-pt.c
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@ -752,6 +752,7 @@ static int intel_pt_recording_options(struct auxtrace_record *itr,
tracking_evsel->attr.freq = 0;
tracking_evsel->attr.sample_period = 1;
tracking_evsel->no_aux_samples = true;
if (need_immediate)
tracking_evsel->immediate = true;