Messages in this thread | | | Date | Thu, 29 Jan 2015 09:55:56 -0600 (CST) | From | Christoph Lameter <> | Subject | Re: [PATCH -mm v2 1/3] slub: never fail to shrink cache |
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On Thu, 29 Jan 2015, Vladimir Davydov wrote:
> Come to think of it, do we really need to optimize slab placement in > kmem_cache_shrink? None of its users except shrink_store expects it - > they just want to purge the cache before destruction, that's it. May be, > we'd better move slab placement optimization to a separate SLUB's > private function that would be called only by shrink_store, where we can > put up with kmalloc failures? Christoph, what do you think?
The slabinfo tool invokes kmem_cache_shrink to optimize placement.
Run
slabinfo -s
which can then be used to reduce the fragmentation.
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