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SubjectRe: [PATCH 1/2] sched/wait: Break up long wake list walk
On Tue, Aug 22, 2017 at 1:53 PM, Peter Zijlstra <peterz@infradead.org> wrote:
>
> So _the_ problem with yield() is when you hit this with a RT task it
> will busy spin and possibly not allow the task that actually has the
> lock to make progress at all.

I thought we had explicitly defined yield() to not do that.

But I guess we could make this yielding behavior depend on a few more
heuristics. So do the yield only when there is contention, and when
it's a non-RT task.

Linus

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