diff options
Diffstat (limited to 'tools/perf/util/events_stats.h')
| -rw-r--r-- | tools/perf/util/events_stats.h | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/tools/perf/util/events_stats.h b/tools/perf/util/events_stats.h index 8fecc9fbaecc..dcff697ed252 100644 --- a/tools/perf/util/events_stats.h +++ b/tools/perf/util/events_stats.h @@ -18,7 +18,18 @@ * PERF_RECORD_LOST_SAMPLES event. The number of lost-samples events is stored * in .nr_events[PERF_RECORD_LOST_SAMPLES] while total_lost_samples tells * exactly how many samples the kernel in fact dropped, i.e. it is the sum of - * all struct perf_record_lost_samples.lost fields reported. + * all struct perf_record_lost_samples.lost fields reported without setting the + * misc field in the header. + * + * The BPF program can discard samples according to the filter expressions given + * by the user. This number is kept in a BPF map and dumped at the end of perf + * record in a PERF_RECORD_LOST_SAMPLES event. To differentiate it from other + * lost samples, perf tools sets PERF_RECORD_MISC_LOST_SAMPLES_BPF flag in the + * header.misc field. The number of dropped-samples events is stored in + * .nr_events[PERF_RECORD_LOST_SAMPLES] while total_dropped_samples tells + * exactly how many samples the BPF program in fact dropped, i.e. it is the sum + * of all struct perf_record_lost_samples.lost fields reported with the misc + * field set in the header. * * The total_period is needed because by default auto-freq is used, so * multiplying nr_events[PERF_EVENT_SAMPLE] by a frequency isn't possible to get @@ -28,6 +39,7 @@ struct events_stats { u64 total_lost; u64 total_lost_samples; + u64 total_dropped_samples; u64 total_aux_lost; u64 total_aux_partial; u64 total_aux_collision; @@ -45,14 +57,16 @@ struct events_stats { struct hists_stats { u64 total_period; u64 total_non_filtered_period; + u64 total_latency; + u64 total_non_filtered_latency; u32 nr_samples; u32 nr_non_filtered_samples; u32 nr_lost_samples; + u32 nr_dropped_samples; }; void events_stats__inc(struct events_stats *stats, u32 type); -size_t events_stats__fprintf(struct events_stats *stats, FILE *fp, - bool skip_empty); +size_t events_stats__fprintf(struct events_stats *stats, FILE *fp); #endif /* __PERF_EVENTS_STATS_ */ |