Re: [PATCH -mm v2 1/3] slub: never fail to shrink cache

[Christoph Lameter]

On Thu, 29 Jan 2015, Vladimir Davydov wrote:

> Yeah, but the tool just writes 1 to /sys/kernel/slab/cache/shrink, i.e.
> invokes shrink_store(), and I don't propose to remove slab placement
> optimization from there. What I propose is to move slab placement
> optimization from kmem_cache_shrink() to shrink_store(), because other
> users of kmem_cache_shrink() don't seem to need it at all - they just
> want to release empty slabs. Such a change wouldn't affect the behavior
> of `slabinfo -s` at all.

Well we have to go through the chain of partial slabs anyways so its easy
to do the optimization at that point.

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