Messages in this thread | | | From | Mathieu Poirier <> | Date | Thu, 14 Dec 2017 09:03:44 -0700 | Subject | Re: [PATCH] perf report: Fix regression when decoding intelPT traces |
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On 14 December 2017 at 08:28, Jiri Olsa <jolsa@redhat.com> wrote: > On Wed, Dec 13, 2017 at 05:57:54PM -0700, Mathieu Poirier wrote: >> Commit (93d10af26bb7 perf tools: Optimize sample parsing for ordered >> events) breaks intelPT trace decoding by invariably returning an error if >> the event type isn't a PERF_SAMPLE_TIME. > > right, thanks for catchng that > >> >> With this patch the timestamp is initialised and processing is allowed to >> continue even if an error is returned by function >> perf_evlist__parse_sample_timestamp(). >> >> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> >> --- >> tools/perf/util/session.c | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c >> index 54e30f1bcbd7..20cdcf14232b 100644 >> --- a/tools/perf/util/session.c >> +++ b/tools/perf/util/session.c >> @@ -1512,7 +1512,7 @@ static s64 perf_session__process_event(struct perf_session *session, >> >> ret = perf_evlist__parse_sample_timestamp(evlist, event, ×tamp); >> if (ret) >> - return ret; >> + timestamp = -1ULL; > > we still have some -EFAULT error codes in there that we > want to catch.. should it be more like in below? > > thanks, > jirka > > > --- > diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c > index 54e30f1bcbd7..9498aa0efe39 100644 > --- a/tools/perf/util/session.c > +++ b/tools/perf/util/session.c > @@ -1508,10 +1508,10 @@ static s64 perf_session__process_event(struct perf_session *session, > return perf_session__process_user_event(session, event, file_offset); > > if (tool->ordered_events) { > - u64 timestamp; > + u64 timestamp = -1ULL > > ret = perf_evlist__parse_sample_timestamp(evlist, event, ×tamp); > - if (ret) > + if (ret != -1) > return ret;
Yes, that's better - I'll send another revision.
> > ret = perf_session__queue_event(session, event, timestamp, file_offset);
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