Messages in this thread Patch in this message | | | From | Jiri Olsa <> | Subject | [PATCH 2/3] perf record: Fix period option handling | Date | Thu, 1 Feb 2018 09:38:11 +0100 |
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Stephan reported we don't unset PERIOD sample type when --no-period is specified. Adding the unset check and reset PERIOD if --no-period is specified.
Reported-by: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-b89ggszz9x26hm7ztor29b0s@git.kernel.org Signed-off-by: Jiri Olsa <jolsa@kernel.org> --- tools/perf/builtin-record.c | 3 ++- tools/perf/perf.h | 1 + tools/perf/util/evsel.c | 11 ++++++++--- 3 files changed, 11 insertions(+), 4 deletions(-)
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index f251e824edac..907267206973 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -1566,7 +1566,8 @@ static struct option __record_options[] = { OPT_BOOLEAN_SET('T', "timestamp", &record.opts.sample_time, &record.opts.sample_time_set, "Record the sample timestamps"), - OPT_BOOLEAN('P', "period", &record.opts.period, "Record the sample period"), + OPT_BOOLEAN_SET('P', "period", &record.opts.period, &record.opts.period_set, + "Record the sample period"), OPT_BOOLEAN('n', "no-samples", &record.opts.no_samples, "don't sample"), OPT_BOOLEAN_SET('N', "no-buildid-cache", &record.no_buildid_cache, diff --git a/tools/perf/perf.h b/tools/perf/perf.h index 2357f4ccc9c7..cfe46236a5e5 100644 --- a/tools/perf/perf.h +++ b/tools/perf/perf.h @@ -50,6 +50,7 @@ struct record_opts { bool sample_time_set; bool sample_cpu; bool period; + bool period_set; bool running_time; bool full_auxtrace; bool auxtrace_snapshot_mode; diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index f2f2eaafde6d..ff359c9ece2e 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -971,9 +971,6 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts, if (target__has_cpu(&opts->target) || opts->sample_cpu) perf_evsel__set_sample_bit(evsel, CPU); - if (opts->period) - perf_evsel__set_sample_bit(evsel, PERIOD); - /* * When the user explicitly disabled time don't force it here. */ @@ -1075,6 +1072,14 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts, apply_config_terms(evsel, opts, track); evsel->ignore_missing_thread = opts->ignore_missing_thread; + + /* The --period option takes the precedence. */ + if (opts->period_set) { + if (opts->period) + perf_evsel__set_sample_bit(evsel, PERIOD); + else + perf_evsel__reset_sample_bit(evsel, PERIOD); + } } static int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads) -- 2.13.6
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