diff mbox series

[v4] perf report: Fix regression when decoding intelPT traces

Message ID 1515616312-27645-1-git-send-email-mathieu.poirier@linaro.org
State Accepted
Commit 631e8f0a9748d7ef1eb6a84d0d5b9e81a79433ef
Headers show
Series [v4] perf report: Fix regression when decoding intelPT traces | expand

Commit Message

Mathieu Poirier Jan. 10, 2018, 8:31 p.m. UTC
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.

With this patch the timestamp is initialised and processing is allowed to
continue if the error returned by function
perf_evlist__parse_sample_timestamp() is not a fault.

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>

Acked-by: Jiri Olsa <jolsa@redhat.com>

---
Changes for v4:
- Rebased to latest perf/core branch
- Added Jiri's ACK
---
 tools/perf/util/session.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

-- 
2.7.4

Comments

Arnaldo Carvalho de Melo Jan. 18, 2018, 4:28 p.m. UTC | #1
Em Wed, Jan 10, 2018 at 01:31:52PM -0700, Mathieu Poirier escreveu:
> 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.


Thanks, applied.
 
> With this patch the timestamp is initialised and processing is allowed to

> continue if the error returned by function

> perf_evlist__parse_sample_timestamp() is not a fault.

> 

> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>

> Acked-by: Jiri Olsa <jolsa@redhat.com>

> ---

> Changes for v4:

> - Rebased to latest perf/core branch

> - Added Jiri's ACK

> ---

>  tools/perf/util/session.c | 4 ++--

>  1 file changed, 2 insertions(+), 2 deletions(-)

> 

> diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c

> index 54e30f1bcbd7..07221884f725 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, &timestamp);

> -		if (ret)

> +		if (ret && ret != -1)

>  			return ret;

>  

>  		ret = perf_session__queue_event(session, event, timestamp, file_offset);

> -- 

> 2.7.4
Arnaldo Carvalho de Melo Jan. 18, 2018, 4:29 p.m. UTC | #2
Em Wed, Jan 10, 2018 at 01:31:52PM -0700, Mathieu Poirier escreveu:
> 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.


Adrian, have you had the chance of looking at this?

I'm tentatively applying with Jiri's ack.

- Arnaldo
 
> With this patch the timestamp is initialised and processing is allowed to

> continue if the error returned by function

> perf_evlist__parse_sample_timestamp() is not a fault.

> 

> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>

> Acked-by: Jiri Olsa <jolsa@redhat.com>

> ---

> Changes for v4:

> - Rebased to latest perf/core branch

> - Added Jiri's ACK

> ---

>  tools/perf/util/session.c | 4 ++--

>  1 file changed, 2 insertions(+), 2 deletions(-)

> 

> diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c

> index 54e30f1bcbd7..07221884f725 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, &timestamp);

> -		if (ret)

> +		if (ret && ret != -1)

>  			return ret;

>  

>  		ret = perf_session__queue_event(session, event, timestamp, file_offset);

> -- 

> 2.7.4
Adrian Hunter Jan. 19, 2018, 7:12 a.m. UTC | #3
On 18/01/18 18:29, Arnaldo Carvalho de Melo wrote:
> Em Wed, Jan 10, 2018 at 01:31:52PM -0700, Mathieu Poirier escreveu:

>> 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.

> 

> Adrian, have you had the chance of looking at this?

> 

> I'm tentatively applying with Jiri's ack.


Yes, it is fine.  FWIW

Acked-by: Adrian Hunter <adrian.hunter@intel.com>


> 

> - Arnaldo

>  

>> With this patch the timestamp is initialised and processing is allowed to

>> continue if the error returned by function

>> perf_evlist__parse_sample_timestamp() is not a fault.

>>

>> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>

>> Acked-by: Jiri Olsa <jolsa@redhat.com>

>> ---

>> Changes for v4:

>> - Rebased to latest perf/core branch

>> - Added Jiri's ACK

>> ---

>>  tools/perf/util/session.c | 4 ++--

>>  1 file changed, 2 insertions(+), 2 deletions(-)

>>

>> diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c

>> index 54e30f1bcbd7..07221884f725 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, &timestamp);

>> -		if (ret)

>> +		if (ret && ret != -1)

>>  			return ret;

>>  

>>  		ret = perf_session__queue_event(session, event, timestamp, file_offset);

>> -- 

>> 2.7.4

>
diff mbox series

Patch

diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 54e30f1bcbd7..07221884f725 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, &timestamp);
-		if (ret)
+		if (ret && ret != -1)
 			return ret;
 
 		ret = perf_session__queue_event(session, event, timestamp, file_offset);