Em Fri, Aug 24, 2012 at 05:32:21PM +0400, Andrey Wagin escreveu:
> Hello Arnaldo,
>
> What do you think about this series?
>
> It has been fixed according with your comments to the previous
> patches. Are you going to take it?
I've put them in a perf/sleep branch in my tree, waiting on Frédéric
Hello Arnaldo,
What do you think about this series?
It has been fixed according with your comments to the previous
patches. Are you going to take it?
2012/8/7 Andrew Vagin :
> This functionality helps to analize where a task sleeps or waits locks.
> This feature can help to investigate a scalabi
2012/8/9 Namhyung Kim :
> The usage like this is too specific and hard to use IMHO. How about
> putting it somehow into perf sched or new command?
>
> /me don't have an idea though. :-)
>
I'm going to add a script, so the usage will look like this:
$ perf script r
On Wed, 8 Aug 2012 11:24:34 +0400, Andrey Wagin wrote:
> 2012/8/8 Namhyung Kim :
>> On Wed, 8 Aug 2012 09:02:18 +0400, Andrey Wagin wrote:
>>> 2012/8/8 Namhyung Kim :
>
> $ ./perf record -e sched:sched_stat_sleep -e sched:sched_switch \
> -e sched:sched_process_exit -gP -o
2012/8/8 Namhyung Kim :
> On Wed, 8 Aug 2012 09:02:18 +0400, Andrey Wagin wrote:
>> 2012/8/8 Namhyung Kim :
$ ./perf record -e sched:sched_stat_sleep -e sched:sched_switch \
-e sched:sched_process_exit -gP -o ~/perf.data.raw ~/foo
>>
>> Actually this string is not compl
On Wed, 8 Aug 2012 09:02:18 +0400, Andrey Wagin wrote:
> 2012/8/8 Namhyung Kim :
>>>
>>> $ ./perf record -e sched:sched_stat_sleep -e sched:sched_switch \
>>> -e sched:sched_process_exit -gP -o ~/perf.data.raw ~/foo
>
> Actually this string is not completed, because sched:sched_switch
2012/8/8 Namhyung Kim :
>>
>> $ ./perf record -e sched:sched_stat_sleep -e sched:sched_switch \
>> -e sched:sched_process_exit -gP -o ~/perf.data.raw ~/foo
Actually this string is not completed, because sched:sched_switch
should be filtered by state.
>> [ perf record: Woken up 1 tim
Hi, Andrew
On Tue, 7 Aug 2012 16:56:01 +0400, Andrew Vagin wrote:
> This functionality helps to analize where a task sleeps or waits locks.
> This feature can help to investigate a scalability problems.
>
Looks like a nice feature.
> The main idea is that we can combine sched_switch and sched_s
This functionality helps to analize where a task sleeps or waits locks.
This feature can help to investigate a scalability problems.
The main idea is that we can combine sched_switch and sched_stat_sleep events.
sched_switch contains a callchain, when a task starts sleeping.
sched_stat_sleep conta
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