PEBS event monitoring

PEBS event monitoring

[Chulmin Kim]

Hi, all.

Sorry for consecutive basic questions.

I am about to use PEBS monitoring of Intel CPU. (westmere)

Let me elaborate pfmon example a bit.

 %  pfmon --smpl-module=pebs -einstructions_retired --inv=1
--counter-mask=1 --long-smpl-periods=2660000 -uk -- foo
 # counts   %self    %cum          code addr
     1976  70.67%  70.67% 0x00000000004005e9
      710  25.39%  96.07% 0x00000000004005f1
       61   2.18%  98.25% 0x00000000004005e0
       21   0.75%  99.00% 0x00000000004005ed
       10   0.36%  99.36% 0x00000000004005f4
        2   0.07%  99.43% 0xffffffff80583110
        2   0.07%  99.50% 0xffffffff8024b4f8

As shown in the above,
I want to get the count number attached with address information.

While the example is only for retired instruction event, I want the same
thing for memory event (mem_load_retired) using Perf.

Is there any guide for this issue?

Re: PEBS event monitoring

[Namhyung Kim]

Hi Chulmin,

On Thu, 29 Nov 2012 15:08:16 +0900, Chulmin Kim wrote:
> Hi, all.
>
> Sorry for consecutive basic questions.
>
> I am about to use PEBS monitoring of Intel CPU. (westmere)
>
> Let me elaborate pfmon example a bit.
>
>  %  pfmon --smpl-module=pebs -einstructions_retired --inv=1
> --counter-mask=1 --long-smpl-periods=2660000 -uk -- foo
>  # counts   %self    %cum          code addr
>      1976  70.67%  70.67% 0x00000000004005e9
>       710  25.39%  96.07% 0x00000000004005f1
>        61   2.18%  98.25% 0x00000000004005e0
>        21   0.75%  99.00% 0x00000000004005ed
>        10   0.36%  99.36% 0x00000000004005f4
>         2   0.07%  99.43% 0xffffffff80583110
>         2   0.07%  99.50% 0xffffffff8024b4f8
>
> As shown in the above,
> I want to get the count number attached with address information.
>
> While the example is only for retired instruction event, I want the same
> thing for memory event (mem_load_retired) using Perf.
>
> Is there any guide for this issue?

Is this what you're looking for? (FYI, it's not merged yet)

https://lkml.org/lkml/2012/11/21/295

Thanks,
Namhyung

Re: PEBS event monitoring

[Chulmin Kim]

2012-11-29 오후 4:06, Namhyung Kim 쓴 글:
> Hi Chulmin,
> 
> On Thu, 29 Nov 2012 15:08:16 +0900, Chulmin Kim wrote:
>> Hi, all.
>>
>> Sorry for consecutive basic questions.
>>
>> I am about to use PEBS monitoring of Intel CPU. (westmere)
>>
>> Let me elaborate pfmon example a bit.
>>
>>   %  pfmon --smpl-module=pebs -einstructions_retired --inv=1
>> --counter-mask=1 --long-smpl-periods=2660000 -uk -- foo
>>   # counts   %self    %cum          code addr
>>       1976  70.67%  70.67% 0x00000000004005e9
>>        710  25.39%  96.07% 0x00000000004005f1
>>         61   2.18%  98.25% 0x00000000004005e0
>>         21   0.75%  99.00% 0x00000000004005ed
>>         10   0.36%  99.36% 0x00000000004005f4
>>          2   0.07%  99.43% 0xffffffff80583110
>>          2   0.07%  99.50% 0xffffffff8024b4f8
>>
>> As shown in the above,
>> I want to get the count number attached with address information.
>>
>> While the example is only for retired instruction event, I want the same
>> thing for memory event (mem_load_retired) using Perf.
>>
>> Is there any guide for this issue?
> 
> Is this what you're looking for? (FYI, it's not merged yet)
> 
> https://lkml.org/lkml/2012/11/21/295

Yeah! It is exactly the one I'm looking for.

Thanks!

> 
> Thanks,
> Namhyung
>