From: Christoph Lameter Date: Fri, 21 Dec 2007 22:37:37 +0000 (-0800) Subject: SLUB: Improve hackbench speed X-Git-Tag: Ubuntu-5.0.0-8.9~37233 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=76be895001f2b0bee42a7685e942d3e08d5dd46c;p=mirror_ubuntu-disco-kernel.git SLUB: Improve hackbench speed Increase the mininum number of partial slabs to keep around and put partial slabs to the end of the partial queue so that they can add more objects. Signed-off-by: Christoph Lameter Reviewed-by: Pekka Enberg Acked-by: Ingo Molnar Signed-off-by: Linus Torvalds --- diff --git a/mm/slub.c b/mm/slub.c index b9f37cb0f2e6..3655ad359f03 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -172,7 +172,7 @@ static inline void ClearSlabDebug(struct page *page) * Mininum number of partial slabs. These will be left on the partial * lists even if they are empty. kmem_cache_shrink may reclaim them. */ -#define MIN_PARTIAL 2 +#define MIN_PARTIAL 5 /* * Maximum number of desirable partial slabs. @@ -1613,7 +1613,7 @@ checks_ok: * then add it. */ if (unlikely(!prior)) - add_partial(get_node(s, page_to_nid(page)), page); + add_partial_tail(get_node(s, page_to_nid(page)), page); out_unlock: slab_unlock(page);