On Mon, 4 Feb 2013 13:32:54 +0100, Jiri Olsa wrote:
> hi,
> adding support to read sample values through the PERF_SAMPLE_READ
> sample type. It's now possible to specify 'S' modifier for an event
> and get its sample value by PERF_SAMPLE_READ.
>
> For group the 'S' modifier will enable sampling on
hi,
adding support to read sample values through the PERF_SAMPLE_READ
sample type. It's now possible to specify 'S' modifier for an event
and get its sample value by PERF_SAMPLE_READ.
For group the 'S' modifier will enable sampling only for the leader
and read all the group member by PERF_SAMPLE_R
Em Sat, Oct 27, 2012 at 12:39:06AM +0900, Namhyung Kim escreveu:
> 2012-10-26 (금), 12:23 +0200, Jiri Olsa:
> > $ ./perf record -e '{cycles,cache-misses}:S,instructions' ls
> > $ ./perf record -e '{cycles:S,cache-misses},instructions' ls
> > $ ./perf record -e 'cycles:S,instructions' ls
> >
On 10/26/12 10:25 AM, Namhyung Kim wrote:
2012-10-26 (금), 10:14 -0600, David Ahern:
On 10/26/12 9:39 AM, Namhyung Kim wrote:
hm, thats the unique sample_type issue again ;) Once we set
PERF_SAMPLE_READ for event or group, we need to set it for
all other events in session, otherwise the report f
2012-10-26 (금), 10:14 -0600, David Ahern:
> On 10/26/12 9:39 AM, Namhyung Kim wrote:
> >> hm, thats the unique sample_type issue again ;) Once we set
> >> PERF_SAMPLE_READ for event or group, we need to set it for
> >> all other events in session, otherwise the report fails
> >
> > Sorry, I don't u
On 10/26/12 9:39 AM, Namhyung Kim wrote:
hm, thats the unique sample_type issue again ;) Once we set
PERF_SAMPLE_READ for event or group, we need to set it for
all other events in session, otherwise the report fails
Sorry, I don't understand why we need to set it for all events. Just
setting i
2012-10-26 (금), 12:23 +0200, Jiri Olsa:
> On Fri, Oct 26, 2012 at 11:14:45AM +0200, Peter Zijlstra wrote:
> > I haven't actually looked at the implementation, but I understood it to
> > be a group modifier, not an event modifier.
>
> we might want to be able to use PERF_SAMPLE_READ for single even
On Fri, Oct 26, 2012 at 11:14:45AM +0200, Peter Zijlstra wrote:
> On Fri, 2012-10-26 at 10:29 +0900, Namhyung Kim wrote:
> > Hi Jiri,
> >
> > On Sat, 20 Oct 2012 16:33:08 +0200, Jiri Olsa wrote:
> > > hi,
> > > adding support to read sample values through the PERF_SAMPLE_READ
> > > sample type. It
On Fri, 2012-10-26 at 10:29 +0900, Namhyung Kim wrote:
> Hi Jiri,
>
> On Sat, 20 Oct 2012 16:33:08 +0200, Jiri Olsa wrote:
> > hi,
> > adding support to read sample values through the PERF_SAMPLE_READ
> > sample type. It's now possible to specify 'S' modifier for an event
> > and get its sample va
Hi Jiri,
On Sat, 20 Oct 2012 16:33:08 +0200, Jiri Olsa wrote:
> hi,
> adding support to read sample values through the PERF_SAMPLE_READ
> sample type. It's now possible to specify 'S' modifier for an event
> and get its sample value by PERF_SAMPLE_READ.
I have a question. What's an actual impact
On Mon, Oct 22, 2012 at 05:51:01PM +0900, Namhyung Kim wrote:
> On Mon, 22 Oct 2012 10:09:31 +0200, Jiri Olsa wrote:
> > On Sun, Oct 21, 2012 at 06:38:49PM +0200, Ingo Molnar wrote:
> >> > #
> >> > # Samples: 86 of event 'anon group { cycles, cache-misses }'
> >> > # Event count (approx.): 3
On Mon, Oct 22, 2012 at 05:53:32PM +0900, Namhyung Kim wrote:
> On Mon, 22 Oct 2012 09:53:05 +0200, Jiri Olsa wrote:
> > On Mon, Oct 22, 2012 at 04:32:11PM +0900, Namhyung Kim wrote:
> >> It'd be better if you provide a git branch for this series.
> >
> > aaah right, I forgot to mention that.. ;)
>
On Mon, 22 Oct 2012 09:53:05 +0200, Jiri Olsa wrote:
> On Mon, Oct 22, 2012 at 04:32:11PM +0900, Namhyung Kim wrote:
>> It'd be better if you provide a git branch for this series.
>
> aaah right, I forgot to mention that.. ;)
>
> git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/linux.git
> perf/
On Mon, 22 Oct 2012 10:09:31 +0200, Jiri Olsa wrote:
> On Sun, Oct 21, 2012 at 06:38:49PM +0200, Ingo Molnar wrote:
>> > #
>> > # Samples: 86 of event 'anon group { cycles, cache-misses }'
>> > # Event count (approx.): 34863674
>> > #
>> > # OverheadPeriod Co
On Sun, Oct 21, 2012 at 06:38:49PM +0200, Ingo Molnar wrote:
>
> * Jiri Olsa wrote:
>
> > hi,
> > adding support to read sample values through the PERF_SAMPLE_READ
> > sample type. It's now possible to specify 'S' modifier for an event
> > and get its sample value by PERF_SAMPLE_READ.
> >
> > F
On Mon, Oct 22, 2012 at 04:32:11PM +0900, Namhyung Kim wrote:
> Hi Jiri,
>
> It'd be better if you provide a git branch for this series.
aaah right, I forgot to mention that.. ;)
git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/linux.git
perf/group2
thanks,
jirka
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Hi Jiri,
It'd be better if you provide a git branch for this series.
Thanks,
Namhyung
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Please read the
* Jiri Olsa wrote:
> hi,
> adding support to read sample values through the PERF_SAMPLE_READ
> sample type. It's now possible to specify 'S' modifier for an event
> and get its sample value by PERF_SAMPLE_READ.
>
> For group the 'S' modifier will enable sampling only for the leader
> and read a
hi,
adding support to read sample values through the PERF_SAMPLE_READ
sample type. It's now possible to specify 'S' modifier for an event
and get its sample value by PERF_SAMPLE_READ.
For group the 'S' modifier will enable sampling only for the leader
and read all the group member by PERF_SAMPLE_R
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