Commit 76be8950 authored by Christoph Lameter's avatar Christoph Lameter Committed by Linus Torvalds
Browse files

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: default avatarChristoph Lameter <clameter@sgi.com>
Reviewed-by: default avatarPekka Enberg <penberg@cs.helsinki.fi>
Acked-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent ea67db4c

mm/slub.c

+2 −2
Original line number Diff line number Diff line
@@ -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);