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Groups > linux.kernel > #1399915

Re: [PATCH 0/3] sched: Fix wakeup preemption regression

From Matt Fleming <matt@codeblueprint.co.uk>
Newsgroups linux.kernel
Subject Re: [PATCH 0/3] sched: Fix wakeup preemption regression
Date 2016-05-12 13:00 +0200
Message-ID <rxWvx-3Ty-11@gated-at.bofh.it> (permalink)
References <rxjXd-7jo-31@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Tue, 10 May, at 07:43:14PM, Peter Zijlstra wrote:
> A recent commit caused an interactivity/starvation issue because we wrecked rq
> local wakeup preemption.
> 
> These patches rectify this while also (hopefully) keeping the problem that led
> to the fault patch fixed.
> 
> Mike, Pavan, could you guys please confirm?
 
FWIW, I took a quick look over these patches and they made sense to
me. (I appreciate the comment block above enqueue_entity())

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Thread

[PATCH 0/3] sched: Fix wakeup preemption regression Peter Zijlstra <peterz@infradead.org> - 2016-05-10 19:50 +0200
  [PATCH 3/3] sched: Kill sched_class::task_waking Peter Zijlstra <peterz@infradead.org> - 2016-05-10 20:00 +0200
  Re: [PATCH 0/3] sched: Fix wakeup preemption regression Mike Galbraith <umgwanakikbuti@gmail.com> - 2016-05-11 08:00 +0200
  Re: [PATCH 0/3] sched: Fix wakeup preemption regression Pavan Kondeti <pkondeti@codeaurora.org> - 2016-05-12 12:00 +0200
  Re: [PATCH 0/3] sched: Fix wakeup preemption regression Matt Fleming <matt@codeblueprint.co.uk> - 2016-05-12 13:00 +0200

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