On Wed, 21 Mar 2012, Eric Dumazet wrote:

Creating a dedicated cache for few objects ? Thats a lot of overhead, at
least for SLAB (no merges of caches)

Its some overhead for SLAB (a lot is what? If you tune down the per cpu
caches it should be a couple of pages) but its none for SLUB. Maybe we
need to add the merge logic to SLAB?

Or maybe we can extract a common higher handling level for kmem_cache
from all slab allocators and make merging standard.

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