Messages in this thread | | | Subject | Re: slab: Remove SLAB_NO_REAP option | From | Pekka Enberg <> | Date | Thu, 23 Feb 2006 20:36:52 +0200 |
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On Thu, 2006-02-23 at 09:20 -0800, Christoph Lameter wrote: > On Thu, 23 Feb 2006, Pekka J Enberg wrote: > > > We need _something_ to avoid excessive scanning of cache_cache. It takes a > > hell of a lot insmod/rmmod to actually free a full page. Maybe something > > like this (totally untested) patch? > > What excessive scanning of cache_cache? If the per cpu cache of > cache_cache has been drained then there will be no scanning just an > inspection if there are zero elements.
Look at the loop, it is redundant work (like acquiring/releasing a spinlock). The cache_cache is practically static, which is why it makes sense to leave it alone.
Pekka
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