diff options
Diffstat (limited to 'tools/perf/util/intel-tpebs.c')
| -rw-r--r-- | tools/perf/util/intel-tpebs.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/tools/perf/util/intel-tpebs.c b/tools/perf/util/intel-tpebs.c index a96abec0c65c..5a158395c7fa 100644 --- a/tools/perf/util/intel-tpebs.c +++ b/tools/perf/util/intel-tpebs.c @@ -31,6 +31,7 @@ #define PERF_DATA "-" bool tpebs_recording; +enum tpebs_mode tpebs_mode; static LIST_HEAD(tpebs_results); static pthread_t tpebs_reader_thread; static struct child_process tpebs_cmd; @@ -45,6 +46,8 @@ struct tpebs_retire_lat { char *event; /** @stats: Recorded retirement latency stats. */ struct stats stats; + /** @last: Last retirement latency read. */ + uint64_t last; /* Has the event been sent to perf record? */ bool started; }; @@ -142,6 +145,7 @@ static int process_sample_event(const struct perf_tool *tool __maybe_unused, * latency value will be used. Save the number of samples and the sum of * retire latency value for each event. */ + t->last = sample->retire_lat; update_stats(&t->stats, sample->retire_lat); mutex_unlock(tpebs_mtx_get()); return 0; @@ -517,7 +521,21 @@ int evsel__tpebs_read(struct evsel *evsel, int cpu_map_idx, int thread) return ret; mutex_lock(tpebs_mtx_get()); } - val = rint(t->stats.mean); + switch (tpebs_mode) { + case TPEBS_MODE__MIN: + val = rint(t->stats.min); + break; + case TPEBS_MODE__MAX: + val = rint(t->stats.max); + break; + case TPEBS_MODE__LAST: + val = t->last; + break; + default: + case TPEBS_MODE__MEAN: + val = rint(t->stats.mean); + break; + } mutex_unlock(tpebs_mtx_get()); if (old_count) { |