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SubjectRe: [PATCH 1/2] sched/wait: Break up long wake list walk
On Thu, Aug 24, 2017 at 11:16:15AM -0700, Linus Torvalds wrote:
> On Thu, Aug 24, 2017 at 10:49 AM, Tim Chen <> wrote:
> >
> > These changes look fine. We are testing them now.
> > Does the second patch in the series look okay to you?
> I didn't really have any reaction to that one, as long as Mel&co are
> ok with it, I'm fine with it.

I've no strong objections or concerns. I'm disappointed that the
original root cause for this could not be found but hope that eventually a
reproducible test case will eventually be available. Despite having access
to a 4-socket box, I was still unable to create a workload that caused
large delays on wakeup. I'm going to have to stop as I don't think it's
possible to create on that particular machine for whatever reason.

Mel Gorman

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