Messages in this thread Patch in this message | | | From | Adrian Hunter <> | Subject | [PATCH V4 07/15] perf intel-pt: Use evlist__add_dummy_on_all_cpus() for switch tracking | Date | Tue, 24 May 2022 10:54:28 +0300 |
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Use evlist__add_dummy_on_all_cpus() for switch tracking in preparation for allowing system-wide events on all CPUs while the user requested events are on only user requested CPUs.
Acked-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> --- tools/perf/arch/x86/util/intel-pt.c | 13 +++---------- 1 file changed, 3 insertions(+), 10 deletions(-)
diff --git a/tools/perf/arch/x86/util/intel-pt.c b/tools/perf/arch/x86/util/intel-pt.c index 2eaac4638aab..0ee93894a0da 100644 --- a/tools/perf/arch/x86/util/intel-pt.c +++ b/tools/perf/arch/x86/util/intel-pt.c @@ -811,18 +811,11 @@ static int intel_pt_recording_options(struct auxtrace_record *itr, if (!cpu_wide && perf_can_record_cpu_wide()) { struct evsel *switch_evsel; - err = parse_events(evlist, "dummy:u", NULL); - if (err) - return err; + switch_evsel = evlist__add_dummy_on_all_cpus(evlist); + if (!switch_evsel) + return -ENOMEM; - switch_evsel = evlist__last(evlist); - - switch_evsel->core.attr.freq = 0; - switch_evsel->core.attr.sample_period = 1; switch_evsel->core.attr.context_switch = 1; - - switch_evsel->core.system_wide = true; - switch_evsel->no_aux_samples = true; switch_evsel->immediate = true; evsel__set_sample_bit(switch_evsel, TID); -- 2.25.1
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