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Commit 69d8bd8a authored by Kan Liang's avatar Kan Liang Committed by Arnaldo Carvalho de Melo
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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: default avatarKan Liang <kan.liang@intel.com>
Acked-by: default avatarJiri 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: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 510457ec

tools/perf/arch/x86/util/intel-pt.c

+1 −0
Original line number Diff line number Diff line
@@ -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;