mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-12 05:48:40 +00:00
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>
This commit is contained in:
parent
83e1986032
commit
a38f48e300
2 changed files with 11 additions and 0 deletions
|
@ -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;
|
||||
|
|
|
@ -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 "
|
||||
|
|
Loading…
Reference in a new issue