Re: [Gems-users] instruction count

["Zhang Yu" <thuzhangyu@xxxxxxxxx>]

Thanks for the reply. However, what I mean of pstats is already a delta of the instructions (I did the calculation myself). And in my case, the number of instructions executed by each processor should not be equal or similar.

Yu

On Jan 29, 2008 12:15 PM, Dan Gibson <degibson@xxxxxxxx> wrote:

The number of instructions reported by ruby is a delta between the
initial instruction count and the final instruction count. The number of
instructions reported by pstats is a total instruction count, staring at
boot-time if I am not mistaken. Hence the discrepancy.

Zhang Yu wrote:
> Hi,
>
> I'm using Gems2.0 with Simics3.0.30. While I run the simulation with
> multiple cores, the statistics dumped by ruby seems to be
> unreasonable. For example, when I use "taskset" command to assign a
> single task to a certain processor, instruction_executed for all the
> processors are almost the same in the ruby statistics. However, if I
> use "pstats" command in simics, I can see obviously that the certain
> processor executed much more instructions than other processors. So,
> is there anything I can do to make the ruby stats seems more reasonable?
>
> Thanks,
> Yu

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