Re: [PATCH] perf/sched: fix for getting task's execute time

[Xiao Guangrong]

Peter Zijlstra wrote:

> > We really should not be using these proc files but instead make sure
> > this information gets transferred through a tracepoint or similar.
> >
> > Reading these proc files is too prone to races.
>
> We can probably get the runtime by grouping a task-clock swcounter with
> an appropriate other event.

Hi Peter,

Thanks your suggestion.

Actually, we can call getrusage(RUSAGE_THREAD, ru) to get current task's
execute time, and I think this is a simpler way.

I'll send v2 patch later.

Thanks,
Xiao
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