From: Kan Liang <[email protected]> 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 <[email protected]> --- Changes since V1 - new patch to set no_aux_samples for the tracking event (jirka) tools/perf/arch/x86/util/intel-pt.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/perf/arch/x86/util/intel-pt.c b/tools/perf/arch/x86/util/intel-pt.c index f630de0..4fe1aed 100644 --- a/tools/perf/arch/x86/util/intel-pt.c +++ b/tools/perf/arch/x86/util/intel-pt.c @@ -751,6 +751,7 @@ 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; -- 2.9.4
