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    SubjectRe: Patch workqueue: create new slab cache instead of hacking
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    On Wed, 2012-03-21 at 10:03 -0500, Christoph Lameter wrote:
    > 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.

    SLAB overhead per cache is O(CPUS * nr_node_ids) (unless alien caches
    are disabled)

    For few in flight objects, its just better to use standard kmalloc-xxxx
    caches.





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