Commit-ID: a38f48e300f9dac30a9b2d2ce958c8dbd7def351 Gitweb: http://git.kernel.org/tip/a38f48e300f9dac30a9b2d2ce958c8dbd7def351 Author: Adrian Hunter <adrian.hun...@intel.com> AuthorDate: Fri, 25 Sep 2015 16:15:37 +0300 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Mon, 28 Sep 2015 16:51:33 -0300
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.hun...@intel.com> Cc: Jiri Olsa <jo...@redhat.com> Link: http://lkml.kernel.org/r/1443186956-18718-7-git-send-email-adrian.hun...@intel.com Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/util/event.h | 1 + tools/perf/util/session.c | 10 ++++++++++ 2 files changed, 11 insertions(+) diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h index be5cbc7..a0dbcbd 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 f5e0000..15c84ca 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 " -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
