Re: [SCHEDULER] Performance drop in 4.19 compared to 4.18 kernel

From: Peter Zijlstra
Date: Fri Sep 07 2018 - 09:52:49 EST


On Fri, Sep 07, 2018 at 07:14:20PM +0530, Srikar Dronamraju wrote:
> * Peter Zijlstra <peterz@xxxxxxxxxxxxx> [2018-09-07 15:19:23]:
>
> > On Fri, Sep 07, 2018 at 06:26:49PM +0530, Srikar Dronamraju wrote:
> >
> > > Can you please pick
> > >
> > >
> > > 1. 69bb3230297e881c797bbc4b3dbf73514078bc9d sched/numa: Stop multiple tasks
> > > from moving to the cpu at the same time
> > > 2. dc62cfdac5e5b7a61cd8a2bd4190e80b9bb408fc sched/numa: Avoid task migration
> > > for small numa improvement
> > > 3. 76e18a67cdd9e3609716c8a074c03168734736f9 sched/numa: Pass destination cpu as
> > > a parameter to migrate_task_rq
> > > 4. 489c19b440ebdbabffe530b9a41389d0a8b315d9 sched/numa: Reset scan rate
> > > whenever task moves across nodes
> > > 5. b7e9ae1ae3825f35cd0f38f1f0c8e91ea145bc30 sched/numa: Limit the
> > > conditions where scan period is reset
> > >
> > > from https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/kernel/sched
> >
> > That is not a stable tree; the whole thing is re-generated from my quilt
> > set every time I feel like it.
> >
> > It is likely those commit ids will no longer exist in a few hours.
> >
>
> Okay, I will forward the relevant mails to Jirka.

Or he can click on that link and find new IDs :-)