Re: [PATCH 1/4] vmscan: simplify shrink_inactive_list()

From: Andi Kleen
Date: Fri Apr 16 2010 - 03:13:58 EST


On Fri, Apr 16, 2010 at 09:40:13AM +1000, Dave Chinner wrote:
> On Thu, Apr 15, 2010 at 06:54:16PM +0200, Andi Kleen wrote:
> > > It's a buying-time venture, I'll agree but as both approaches are only
> > > about reducing stack stack they wouldn't be long-term solutions by your
> > > criteria. What do you suggest?
> >
> > (from easy to more complicated):
> >
> > - Disable direct reclaim with 4K stacks
>
> Just to re-iterate: we're blowing the stack with direct reclaim on
> x86_64 w/ 8k stacks. The old i386/4k stack problem is a red
> herring.

Yes that's known, but on 4K it will definitely not work at all.

-Andi
--
ak@xxxxxxxxxxxxxxx -- Speaking for myself only.
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