Re: Jiffy is not able to measure the fraction of time a process runs a processor

"Mauricio Lin" <[email protected]> writes:

>  I am trying to measure the fraction of time a process runs on a
> processor, but the jiffies is not able to provide an accurate value.

See sched_clock().

>  The example below [...]
> PID  : NAME : LAST ARRIVAL : CPU TIME : CALLER
> 4544 : kmix : 6170433 : 0 : work_resched+0x6c
> 4078 : lpd : 6170433 : 0 : __down_interruptible+0x5
> 4544 : kmix : 6170433 : 0 : schedule_timeout+0xb8

What tool/patchset are you using to generate this trace?


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- Jiffy is not able to measure the fraction of time a process runs a processor
  - From: "Mauricio Lin" <[email protected]>

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