* sampling and reading
@ 2014-11-04 20:27 Arnav
2014-11-04 21:08 ` Andi Kleen
2014-11-05 2:41 ` Namhyung Kim
0 siblings, 2 replies; 3+ messages in thread
From: Arnav @ 2014-11-04 20:27 UTC (permalink / raw)
To: linux-perf-users
i am working on a project where i need to find program counters for every 100M
instructions.
i have used the following command to record the event
perf record -e instructions -c 100000000 ./filename
now, since counters are counted every 100M instructions, i read file using
'perf report'. But i get results in some percentage form and not in numerical
numbers format.
i wish to read the file and gather the perforamance counter statistics.
Plz suggest how to get the desired results.
thanks
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: sampling and reading
2014-11-04 20:27 sampling and reading Arnav
@ 2014-11-04 21:08 ` Andi Kleen
2014-11-05 2:41 ` Namhyung Kim
1 sibling, 0 replies; 3+ messages in thread
From: Andi Kleen @ 2014-11-04 21:08 UTC (permalink / raw)
To: Arnav; +Cc: linux-perf-users
Arnav <arnav.gupta06@live.in> writes:
> i am working on a project where i need to find program counters for every 100M
> instructions.
>
> i have used the following command to record the event
>
> perf record -e instructions -c 100000000 ./filename
>
> now, since counters are counted every 100M instructions, i read file using
> 'perf report'. But i get results in some percentage form and not in numerical
> numbers format.
>
> i wish to read the file and gather the perforamance counter statistics.
> Plz suggest how to get the desired results.
Use perf script instead of perf report.
-Andi
--
ak@linux.intel.com -- Speaking for myself only
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: sampling and reading
2014-11-04 20:27 sampling and reading Arnav
2014-11-04 21:08 ` Andi Kleen
@ 2014-11-05 2:41 ` Namhyung Kim
1 sibling, 0 replies; 3+ messages in thread
From: Namhyung Kim @ 2014-11-05 2:41 UTC (permalink / raw)
To: Arnav; +Cc: linux-perf-users
Hi Arnav,
On Tue, 4 Nov 2014 20:27:08 +0000 (UTC), Arnav wrote:
> i am working on a project where i need to find program counters for every 100M
> instructions.
>
> i have used the following command to record the event
>
> perf record -e instructions -c 100000000 ./filename
>
> now, since counters are counted every 100M instructions, i read file using
> 'perf report'. But i get results in some percentage form and not in numerical
> numbers format.
>
> i wish to read the file and gather the perforamance counter statistics.
> Plz suggest how to get the desired results.
How about using
perf report --show-total-period
?
Thanks,
Namhyung
^ permalink raw reply [flat|nested] 3+ messages in thread
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2014-11-04 20:27 sampling and reading Arnav
2014-11-04 21:08 ` Andi Kleen
2014-11-05 2:41 ` Namhyung Kim
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