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From: Pekka Enberg <penberg@kernel.org>
To: David Rientjes <rientjes@google.com>
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 15:06:19 +0300	[thread overview]
Message-ID: <CAOJsxLHB9jPNyU2qztbEHG4AZWjauCLkwUVYr--8PuBBg1=MCA@mail.gmail.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1107311426001.944@chino.kir.corp.google.com>

On Mon, Aug 1, 2011 at 12:55 AM, David Rientjes <rientjes@google.com> wrote:
> I'm very confident that slub could beat slab on any system if you throw
> enough memory at it because its fastpaths are extremely efficient, but
> there's no business case for that.

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.

                        Pekka

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  parent reply	other threads:[~2011-08-01 12:06 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 [this message]
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
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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