Re: group scheduler regression since 4.3 (bisect 9d89c257d sched/fair: Rewrite runnable load and utilization average tracking)

From: Peter Zijlstra
Date: Mon Sep 26 2016 - 07:53:14 EST


On Mon, Sep 26, 2016 at 01:42:05PM +0200, Christian Borntraeger wrote:
> On 09/26/2016 12:56 PM, Peter Zijlstra wrote:

> > One of the differences in the old and new thing is being addressed by
> > these patches:
> >
> > https://lkml.kernel.org/r/1473666472-13749-1-git-send-email-vincent.guittot@xxxxxxxxxx
> >
> > Could you see if those patches make a difference? If not, we'll have to
> > go poke elsewhere ofcourse ;-)
>
> Those patches do not apply cleanly on v4.7, linux/master or next/master.
> Is there a good branch to test these patches?

They seemed to apply for me on tip/sched/core, I pushed out a branch for
you that has them on.

git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git sched/propagate

I didn't boot the result though; but they applied without issue.