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From: KOSAKI Motohiro on 13 Jul 2010 01:00
> On Fri, 9 Jul 2010, KOSAKI Motohiro wrote:
>
> > If number of reclaimable slabs are zero, shrink_icache_memory() and
> > shrink_dcache_memory() return 0. but strangely shrink_slab() ignore
> > it and continue meaningless loop iteration.
>
> There is also a per zone/node/global counter SLAB_RECLAIM_ACCOUNT that
> could be used to determine if its worth looking at things at all. I saw
> some effort going into making the shrinkers zone aware. If so then we may
> be able to avoid scanning slabs.

Yup.
After to merge nick's effort, we can makes more imrovement. I bet :)




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