From: cl@linux.com
From: Christoph Lameter <cl@linux.com>
To: Pekka Enberg <penberg@kernel.org>
Cc: linux-mm@kvack.org, David Rientjes <rientjes@google.com>
Subject: [Slub cleanup 0/9] Slub: cleanups V2
Date: Wed, 09 May 2012 10:09:50 -0500 [thread overview]
Message-ID: <20120509150950.243797150@linux.com> (raw)
V1->V2:
- Rebase against 3.4-rc6
A series of cleanup patches that resulted from the rework
of the allocation paths to not disable interrupts.
The patches remove the node field from kmem_cache_cpu and generally
cleans up code in the critical paths. The removal of the node field
increases the cache friendliness of the hotpaths and results in a
slight performance increase.
Hackbench performance before and after using 3.3-rc1
Before After
100 process 20000 152.3 151.2
100 process 20000 160.6 154.8
100 process 20000 161.2 155.5
10 process 20000 15.9 15.5
10 process 20000 15.7 15.5
10 process 20000 15.8 15.5
1 process 20000 1.8 1.6
1 process 20000 1.6 1.6
1 process 20000 1.7 1.6
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next reply other threads:[~2012-05-09 15:10 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-09 15:09 cl, Christoph Lameter [this message]
2012-05-09 15:09 ` [Slub cleanup 1/9] slub: Use freelist instead of "object" in __slab_alloc cl, Christoph Lameter
2012-05-09 15:09 ` [Slub cleanup 2/9] slub: Add frozen check " cl, Christoph Lameter
2012-05-09 15:09 ` [Slub cleanup 3/9] slub: Acquire_slab() avoid loop cl, Christoph Lameter
2012-05-09 15:09 ` [Slub cleanup 4/9] slub: Simplify control flow in __slab_alloc() cl, Christoph Lameter
2012-05-09 15:09 ` [Slub cleanup 5/9] slub: new_slab_objects() can also get objects from partial list cl, Christoph Lameter
2012-05-09 15:09 ` [Slub cleanup 6/9] slub: Get rid of the node field cl, Christoph Lameter
2012-05-09 15:09 ` [Slub cleanup 7/9] slub: Separate out kmem_cache_cpu processing from deactivate_slab cl, Christoph Lameter
2012-05-09 15:09 ` [Slub cleanup 8/9] slub: Use page variable instead of c->page cl, Christoph Lameter
2012-05-09 15:09 ` [Slub cleanup 9/9] slub: pass page to node_match() instead of kmem_cache_cpu structure cl, Christoph Lameter
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