Re: [patch 2/3] scheduler: add full memory barriers upon taskswitch at runqueue lock/unlock

From: Mike Galbraith
Date: Mon Feb 01 2010 - 11:00:17 EST


On Mon, 2010-02-01 at 10:23 -0500, Steven Rostedt wrote:
> On Tue, 2010-02-02 at 01:58 +1100, Nick Piggin wrote:

> > So I would prefer the simpler version that doesn't add overhead to
> > ctxsw, at least for the first implementation.
>
> Acked-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
>
> ;-)

Yup, fast path needs to _lose_ some weight.

-Mike

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