From 69d8bd8aa7d8906a1e922ae884d97f0bd7f1b269 Mon Sep 17 00:00:00 2001 From: Kan Liang Date: Fri, 30 Jun 2017 10:16:55 -0400 Subject: [PATCH] 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 Acked-by: Jiri Olsa Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Andi Kleen Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20170630141656.1626-1-kan.liang@intel.com Signed-off-by: Arnaldo Carvalho de Melo --- 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 9535be57033f..4a461e8ae326 100644 --- a/tools/perf/arch/x86/util/intel-pt.c +++ b/tools/perf/arch/x86/util/intel-pt.c @@ -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; -- GitLab