diff options
| -rw-r--r-- | tools/tracing/rtla/src/osnoise.c | 20 | ||||
| -rw-r--r-- | tools/tracing/rtla/src/osnoise.h | 1 |
2 files changed, 21 insertions, 0 deletions
diff --git a/tools/tracing/rtla/src/osnoise.c b/tools/tracing/rtla/src/osnoise.c index f521f052cbd3..85f398b89597 100644 --- a/tools/tracing/rtla/src/osnoise.c +++ b/tools/tracing/rtla/src/osnoise.c @@ -1095,6 +1095,26 @@ bool osnoise_trace_is_off(struct osnoise_tool *tool, struct osnoise_tool *record return record && !tracefs_trace_is_on(record->trace.inst); } +/* + * osnoise_report_missed_events - report number of events dropped by trace + * buffer + */ +void +osnoise_report_missed_events(struct osnoise_tool *tool) +{ + unsigned long long total_events; + + if (tool->trace.missed_events == UINT64_MAX) + printf("unknown number of events missed, results might not be accurate\n"); + else if (tool->trace.missed_events > 0) { + total_events = tool->trace.processed_events + tool->trace.missed_events; + + printf("%lld (%.2f%%) events missed, results might not be accurate\n", + tool->trace.missed_events, + (double) tool->trace.missed_events / total_events * 100.0); + } +} + static void osnoise_usage(int err) { int i; diff --git a/tools/tracing/rtla/src/osnoise.h b/tools/tracing/rtla/src/osnoise.h index 1dc188baddef..91835a7d8c2b 100644 --- a/tools/tracing/rtla/src/osnoise.h +++ b/tools/tracing/rtla/src/osnoise.h @@ -104,6 +104,7 @@ struct osnoise_tool { void osnoise_destroy_tool(struct osnoise_tool *top); struct osnoise_tool *osnoise_init_tool(char *tool_name); struct osnoise_tool *osnoise_init_trace_tool(char *tracer); +void osnoise_report_missed_events(struct osnoise_tool *tool); bool osnoise_trace_is_off(struct osnoise_tool *tool, struct osnoise_tool *record); int osnoise_hist_main(int argc, char *argv[]); |