Re: [RFC -v3 PATCH 2/3] sched: add yield_to function

From: Peter Zijlstra
Date: Wed Jan 05 2011 - 05:24:04 EST


On Wed, 2011-01-05 at 17:40 +0900, KOSAKI Motohiro wrote:
> > > If you are interesting GIL mess and issue, please feel free to ask more.
> >
> > I suggest looking into an explicit round-robin scheme, where each thread
> > adds itself to a queue and an unlock wakes up the first waiter.
>
> I'm sure you haven't try your scheme. but I did. It's slow.

Of course it is, but then your locking scheme (GIL) is the problem, not
the locking constructs.
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