* memory read/write access counts event in perf
@ 2013-11-02 9:25 caobenzhi
2013-11-02 11:06 ` Manuel Selva
0 siblings, 1 reply; 2+ messages in thread
From: caobenzhi @ 2013-11-02 9:25 UTC (permalink / raw)
To: linux-perf-users
Hi,everyone~
Recently I want to use perf to count the memory read/write access times, but
when I use perf list|help, I can't find corresponding events? Does perf
cannot be used to count memory access times? Any help will be appreciated,
thanks a lot~
Best
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: memory read/write access counts event in perf
2013-11-02 9:25 memory read/write access counts event in perf caobenzhi
@ 2013-11-02 11:06 ` Manuel Selva
0 siblings, 0 replies; 2+ messages in thread
From: Manuel Selva @ 2013-11-02 11:06 UTC (permalink / raw)
To: caobenzhi, linux-perf-users
Hi,
You can have a look at the "perf mem record" and "perf mem report"
tools. On Intel hardware, the recording of memory latency is done
through the PEBS load latency facility.
Manu
On 11/02/2013 10:25 AM, caobenzhi wrote:
> Hi,everyone~
> Recently I want to use perf to count the memory read/write access times, but
> when I use perf list|help, I can't find corresponding events? Does perf
> cannot be used to count memory access times? Any help will be appreciated,
> thanks a lot~
> Best
>
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