Re: [PATCH 0/11 v3] sched/fair: Fix statistics with delayed dequeue
From: Peter Zijlstra
Date: Tue Dec 03 2024 - 07:59:29 EST
On Tue, Dec 03, 2024 at 11:41:47AM +0100, Dietmar Eggemann wrote:
> with the following nits:
>
> (1) 01/11
>
> Proposed 'Fixes:' missing:
> https://lkml.kernel.org/r/c82ed217-cfe4-41a4-b39a-e7356231835f@xxxxxxx
>
> (2) 08/11
>
> Would be helpful to point out that we lost the only use case for
> 'cfs_rq->idle_nr_running' with the advent of EEVDF with:
>
> 5e963f2bd465 - sched/fair: Commit to EEVDF
Done.
> (3) Using nr_running on rq/rt_rq/dl_rq and nr_queued
> for cfs_rq might look strange to the untrained eye.
Yes, but keeping nr_running with new semantics would not be less
confusing and potentially more dangerous.
> Reviewed-by: Dietmar Eggemann <dietmar.eggemann@xxxxxxx>
Thanks!