Re: [PATCH V2] sched/fair: Dequeue sched_delayed tasks when waking to a busy CPU

Phil Auld
2024-12-02T19:13:04Z

On Mon, Dec 02, 2024 at 05:55:28PM +0100 Mike Galbraith wrote:
> On Mon, 2024-12-02 at 11:24 -0500, Phil Auld wrote:
> > On Sat, Nov 23, 2024 at 09:44:40AM +0100 Mike Galbraith wrote:
> >
> >
> > > Question: did wiping off the evil leave any meaningful goodness behind?
> >
> > Is that for this patch?
>
> Yeah. Trying it on my box with your write command line didn't improve
> the confidence level either. My box has one CPU handling IRQs and
> waking pinned workers to service 8 fio instances. Patch was useless
> for that.
>

I'll give it a try. Our "box" is multiple different boxes but the results
vary somewhat. The one I sent info about earlier in this thread is just
one of the more egregious and is the one the perf team lent me for a while.

Cheers,
Phil

> -Mike
>
>

--