From: David Rientjes <rientjes@google.com>
To: Pekka Enberg <penberg@kernel.org>
Cc: Christoph Lameter <cl@linux.com>,
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: Mon, 1 Aug 2011 21:05:05 -0700 (PDT) [thread overview]
Message-ID: <alpine.DEB.2.00.1108012101310.6871@chino.kir.corp.google.com> (raw)
In-Reply-To: <CAOJsxLHB9jPNyU2qztbEHG4AZWjauCLkwUVYr--8PuBBg1=MCA@mail.gmail.com>
On Mon, 1 Aug 2011, Pekka Enberg wrote:
> Btw, I haven't measured this recently but in my testing, SLAB has
> pretty much always used more memory than SLUB. So 'throwing more
> memory at the problem' is definitely a reasonable approach for SLUB.
>
Yes, slub _did_ use more memory than slab until the alignment of
struct page. That cost an additional 128MB on each of these 64GB
machines, while the total slab usage on the client machine systemwide is
~75MB while running netperf TCP_RR with 160 threads.
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next prev parent reply other threads:[~2011-08-02 4:05 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 [this message]
2011-08-02 14:15 ` Christoph Lameter
2011-08-02 16:24 ` David Rientjes
2011-08-02 16:36 ` Christoph Lameter
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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