Re: [PATCH 1/6] delayacct: Use sched_clock()

From: Rik van Riel
Date: Wed May 05 2021 - 10:41:02 EST


On Wed, 2021-05-05 at 12:59 +0200, Peter Zijlstra wrote:
> Like all scheduler statistics, use sched_clock() based time.
>
> Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>

Looks like this works even on messed up systems because
the delayacct code is called from the same CPU at sleep
time and wakeup time, before a task is migrated.

Reviewed-by: Rik van Riel <riel@xxxxxxxxxxx>

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