Re: Utime and stime are less when getrusage (RUSAGE_THREAD) is executed on a tickless CPU.

From: hasegawa-hitomi@xxxxxxxxxxx
Date: Sun Jun 27 2021 - 22:43:44 EST

Hi Frederic, Peter, and Mel

> I tested this and confirmed that it gives accurate values.
> Also, task_sched_runtime () is done only on nohz_full CPU, so I think
> it's a better idea than before.
> I hope you will incorporate this fix into your mainline.

I have also confirmed that CPUs other than nohz_full have very little overhead.
Please consider merging it into the mainline.

Hitomi Hasegawa