From: Christoph Lameter <clameter@sgi.com>
To: akpm@linux-foundation.org
Cc: Mel Gorman <mel@csn.ul.ie>, linux-mm@kvack.org
Subject: SLUB: Reduce antifrag max order
Date: Sat, 5 May 2007 09:26:38 -0700 (PDT) [thread overview]
Message-ID: <Pine.LNX.4.64.0705050925350.27136@schroedinger.engr.sgi.com> (raw)
My test systems fails to obtain order 4 allocs after prolonged use.
So the Antifragmentation patches are unable to guarantee order 4
blocks after a while (straight compile, edit load).
Reduce the the max order if antifrag measures are detected to 3.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
---
mm/slub.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: slub/mm/slub.c
===================================================================
--- slub.orig/mm/slub.c 2007-05-05 09:19:32.000000000 -0700
+++ slub/mm/slub.c 2007-05-05 09:22:00.000000000 -0700
@@ -129,7 +129,7 @@
* If antifragmentation methods are in effect then increase the
* slab sizes to increase performance
*/
-#define DEFAULT_ANTIFRAG_MAX_ORDER 4
+#define DEFAULT_ANTIFRAG_MAX_ORDER 3
#define DEFAULT_ANTIFRAG_MIN_OBJECTS 16
/*
--
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next reply other threads:[~2007-05-05 16:26 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-05 16:26 Christoph Lameter [this message]
2007-05-08 13:15 ` Mel Gorman
2007-05-08 16:12 ` Christoph Lameter
2007-05-09 18:25 ` Christoph Lameter
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