Messages in this thread | | | Date | Tue, 16 May 2017 18:02:17 -0400 | From | Tejun Heo <> | Subject | Re: [RFC][PATCH 00/14] sched/fair: A bit of a cgroup/PELT overhaul (again).. |
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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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