Messages in this thread |  | | | Date | Sat, 22 May 2010 11:35:45 +0300 | | From | Pekka Enberg <> | | Subject | Re: [PATCH v2] slub: move kmem_cache_node into it's own cacheline |
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Alexander Duyck wrote: > This patch is meant to improve the performance of SLUB by moving the local > kmem_cache_node lock into it's own cacheline separate from kmem_cache. > This is accomplished by simply removing the local_node when NUMA is enabled. > > On my system with 2 nodes I saw around a 5% performance increase w/ > hackbench times dropping from 6.2 seconds to 5.9 seconds on average. I > suspect the performance gain would increase as the number of nodes > increases, but I do not have the data to currently back that up. > > Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Thanks for the fix, Alexander!
Yanmin and Alex, can I have your Tested-by or Acked-by please so we can close "[Bug #15713] hackbench regression due to commit 9dfc6e68bfe6e" after this patch is merged? Pekka
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