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perf intel-pt: Set no_aux_samples for the tracking event
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>
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@ -752,6 +752,7 @@ static int intel_pt_recording_options(struct auxtrace_record *itr,
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tracking_evsel->attr.freq = 0;
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tracking_evsel->attr.sample_period = 1;
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tracking_evsel->no_aux_samples = true;
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if (need_immediate)
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tracking_evsel->immediate = true;
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