Re: [PATCH] perf/sched: fix for getting task's execute time
From: Xiao Guangrong
Date: Sun Dec 06 2009 - 12:16:46 EST
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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