| Date | Fri, 19 Oct 2012 19:47:51 +0000 | From | Christoph Lameter <> | Subject | Re: [PATCH v5 14/18] memcg/sl[au]b: shrink dead caches |
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On Fri, 19 Oct 2012, Glauber Costa wrote:
> An unlikely branch is used to make sure this case does not affect > performance in the usual slab_free path. > > The slab allocator has a time based reaper that would eventually get rid > of the objects, but we can also call it explicitly, since dead caches > are not a likely event.
This is also something that could be done from slab_common since all allocators have kmem_cache_shrink and kmem_cache_shrink can be used to drain the caches and free up empty slab pages.
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