<not counted>satus for perf events in perf stats

[ARNAB_R_]

Hi all,

I am using Intel i5-3337U processor. I want to get several perf events for a process via PID.

However when I am running perf stat command with several events for some seconds,in some execution its giving stats but sometimes its displayed all counters as "<not counted>"..

Could you please tell me the probable reason for that and how to get rid off this problem?

[Dmitry_P_Intel1]

Hello,

Do you use VTune to import perf data? Could you please provide the exact command and OS name/version? It might be helpful for investigation.

Regards, Dmitry

[ARNAB_R_]

Hi Dmitry,

No I am not using Vtune to get perf stats data, rather I am using only commands.

I am using Ubuntu 12.04 LTS ,(kernel version: 3.5.0-23 generic).

used command:

perf stat -e instructions,cycles,cache-

misses,branch-misses,r01c2,r0110,rff26,r02b1,r0f28 -p 100 sleep 5

Regards,

Arnab

[Peter_W_Intel]

This is the forum for  VTune Amplifier XE product.

I don't know why you can't use perf, but I know that perf can be used within VTune Amplifier, then import perf result into VTune 

Please see the example in this article.