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SubjectRe: [RFC][PATCH 00/14] sched/fair: A bit of a cgroup/PELT overhaul (again)..
Hello,

On Fri, May 12, 2017 at 06:44:16PM +0200, Peter Zijlstra wrote:
>
> Hi all,
>
> So after staring at all that PELT stuff and working my way through it again:
>
> https://lkml.kernel.org/r/20170505154117.6zldxuki2fgyo53n@hirez.programming.kicks-ass.net
>
> I started doing some patches to fix some of the identified broken.
>
> So here are a few too many patches that do:
>
> - fix 'reweight_entity' to instantly propagate the change in se->load.weight.
>
> - rewrite/fix the propagate on migrate (attach/detach)
>
> - introduce the hierarchical runnable_load_avg, as proposed by Tejun.
>
> - synchronous detach for runnable migrates
>
> - aligns the PELT windows between a cfs_rq and all its se's
>
> - deals with random fallout from the above (some of this needs folding back
> and reordering, but its all well past the point I should post this anyway).

The schbench results look good here. I'll put it under more realistic
test tomorrow and see how it performs.

Thanks.

--
tejun

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