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authorChristoph Lameter <clameter@sgi.com>2007-12-21 23:37:37 +0100
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-12-22 00:51:07 +0100
commit76be895001f2b0bee42a7685e942d3e08d5dd46c (patch)
tree7444607c21c11ad363eee300f286ad8e1b71b65f
parentLinux 2.6.24-rc6 (diff)
downloadlinux-76be895001f2b0bee42a7685e942d3e08d5dd46c.tar.xz
linux-76be895001f2b0bee42a7685e942d3e08d5dd46c.zip
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 <clameter@sgi.com> Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--mm/slub.c4
1 files changed, 2 insertions, 2 deletions
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);