From: Christoph Lameter <cl@linux.com>
To: David Rientjes <rientjes@google.com>
Cc: Pekka Enberg <penberg@kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
hughd@google.com, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: [GIT PULL] Lockless SLUB slowpaths for v3.1-rc1
Date: Tue, 2 Aug 2011 11:36:29 -0500 (CDT) [thread overview]
Message-ID: <alpine.DEB.2.00.1108021131250.21126@router.home> (raw)
In-Reply-To: <alpine.DEB.2.00.1108020915370.1114@chino.kir.corp.google.com>
On Tue, 2 Aug 2011, David Rientjes wrote:
> allocator, in this case. And the per-cpu partial list will add even
> additional slab usage for slub, so this is where my "throwing more memory
> at slub to get better performance" came from. I understand that this is a
> large NUMA machine, though, and the cost of slub may be substantially
> lower on smaller machines.
The per cpu partial lists only add the need for more memory if other
processors have to allocate new pages because they do not have enough
partial slab pages to satisfy their needs. That can be tuned by a cap on
objects.
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next prev parent reply other threads:[~2011-08-02 16:36 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-28 22:47 Pekka Enberg
2011-07-29 15:04 ` Christoph Lameter
2011-07-29 23:18 ` Andi Kleen
2011-07-30 6:33 ` Eric Dumazet
2011-07-31 18:50 ` David Rientjes
2011-07-31 20:24 ` David Rientjes
2011-07-31 20:45 ` Pekka Enberg
2011-07-31 21:55 ` David Rientjes
2011-08-01 5:08 ` Pekka Enberg
2011-08-01 10:02 ` David Rientjes
2011-08-01 12:45 ` Pekka Enberg
2011-08-02 2:43 ` David Rientjes
2011-08-01 12:06 ` Pekka Enberg
2011-08-01 15:55 ` Christoph Lameter
2011-08-02 4:05 ` David Rientjes
2011-08-02 14:15 ` Christoph Lameter
2011-08-02 16:24 ` David Rientjes
2011-08-02 16:36 ` Christoph Lameter [this message]
2011-08-02 20:02 ` David Rientjes
2011-08-03 14:09 ` Christoph Lameter
2011-08-08 20:04 ` David Rientjes
2011-07-30 18:27 ` Linus Torvalds
2011-07-30 18:32 ` Linus Torvalds
2011-07-31 17:39 ` Andi Kleen
2011-08-01 0:22 ` KAMEZAWA Hiroyuki
2011-07-31 18:11 ` David Rientjes
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