diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2015-09-25 16:15:37 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-09-28 22:51:33 +0300 |
| commit | a38f48e300f9dac30a9b2d2ce958c8dbd7def351 (patch) | |
| tree | 3f6152a3f31f37b81d64a699d9156cb0154ceaff /tools | |
| parent | 83e1986032dfcd3f9e9fc0d06e11d9153edae19b (diff) | |
| download | linux-a38f48e300f9dac30a9b2d2ce958c8dbd7def351.tar.xz | |
perf session: Warn when AUX data has been lost
By default 'perf record' will postprocess the perf.data file to
determine build-ids. When that happens, the number of lost perf events
is displayed.
Make that also happen for AUX events.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1443186956-18718-7-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/event.h | 1 | ||||
| -rw-r--r-- | tools/perf/util/session.c | 10 |
2 files changed, 11 insertions, 0 deletions
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h index be5cbc7be889..a0dbcbd4f6d8 100644 --- a/tools/perf/util/event.h +++ b/tools/perf/util/event.h @@ -257,6 +257,7 @@ struct events_stats { u64 total_non_filtered_period; u64 total_lost; u64 total_lost_samples; + u64 total_aux_lost; u64 total_invalid_chains; u32 nr_events[PERF_RECORD_HEADER_MAX]; u32 nr_non_filtered_samples; diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index f5e000030a5e..15c84cad213a 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -1101,6 +1101,9 @@ static int machines__deliver_event(struct machines *machines, case PERF_RECORD_UNTHROTTLE: return tool->unthrottle(tool, event, sample, machine); case PERF_RECORD_AUX: + if (tool->aux == perf_event__process_aux && + (event->aux.flags & PERF_AUX_FLAG_TRUNCATED)) + evlist->stats.total_aux_lost += 1; return tool->aux(tool, event, sample, machine); case PERF_RECORD_ITRACE_START: return tool->itrace_start(tool, event, sample, machine); @@ -1346,6 +1349,13 @@ static void perf_session__warn_about_errors(const struct perf_session *session) } } + if (session->tool->aux == perf_event__process_aux && + stats->total_aux_lost != 0) { + ui__warning("AUX data lost %" PRIu64 " times out of %u!\n\n", + stats->total_aux_lost, + stats->nr_events[PERF_RECORD_AUX]); + } + if (stats->nr_unknown_events != 0) { ui__warning("Found %u unknown events!\n\n" "Is this an older tool processing a perf.data " |