From: Christoph Lameter <cl@linux-foundation.org>
To: Nitin Gupta <ngupta@vflare.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/3]: xvmalloc memory allocator
Date: Tue, 17 Mar 2009 12:41:09 -0400 (EDT) [thread overview]
Message-ID: <alpine.DEB.1.10.0903171237180.21582@qirst.com> (raw)
In-Reply-To: <49BF8B8B.40408@vflare.org>
On Tue, 17 Mar 2009, Nitin Gupta wrote:
> Slub allocator could not be used due to fragmentation issues:
> http://code.google.com/p/compcache/wiki/AllocatorsComparison
> Data here shows kmalloc using ~43% more memory than TLSF and xvMalloc
> is showed ~2% more space efficiency than TLSF (due to smaller metadata).
Well this looks like the use of 2^n sizes of the kmalloc arrayse cause a
lot of wastage here. Creating slab caches that fit your needs may help?
Have you had a look at the SLOB approach?
next prev parent reply other threads:[~2009-03-17 16:46 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-17 11:34 [PATCH 0/3]: compressed in-memory swapping Nitin Gupta
2009-03-17 11:36 ` [PATCH 1/3]: compressed RAM block device Nitin Gupta
2009-03-18 12:25 ` Nick Piggin
2009-03-18 12:38 ` Nitin Gupta
2009-03-18 12:49 ` Nick Piggin
2009-03-20 18:56 ` Pavel Machek
2009-03-20 19:53 ` Nitin Gupta
2009-03-17 11:37 ` [PATCH 2/3]: xvmalloc memory allocator Nitin Gupta
2009-03-17 16:41 ` Christoph Lameter [this message]
2009-03-17 17:55 ` Nitin Gupta
[not found] ` <d760cf2d0903171028o600dc94cn7a5238520d104455@mail.gmail.com>
2009-03-17 17:58 ` Christoph Lameter
2009-03-17 18:34 ` Pekka Enberg
2009-03-18 16:07 ` Nitin Gupta
2009-03-18 15:17 ` Nitin Gupta
2009-03-18 16:58 ` Christoph Lameter
2009-03-18 17:29 ` Nitin Gupta
2009-03-18 19:21 ` Pekka Enberg
2009-03-18 19:36 ` Nitin Gupta
2009-03-19 2:30 ` Nitin Gupta
2009-03-19 6:08 ` Pekka Enberg
2009-03-17 11:38 ` [PATCH 3/3]: documentation Nitin Gupta
2009-03-17 23:34 ` [PATCH 0/3]: compressed in-memory swapping Russ Dill
2009-03-20 14:07 [PATCH 0/3] compressed in-memory swapping take2 Nitin Gupta
2009-03-20 14:12 ` [PATCH 2/3] xvmalloc memory allocator Nitin Gupta
2009-03-20 14:57 ` Christoph Lameter
2009-03-20 16:24 ` Nitin Gupta
2009-03-20 17:40 ` Christoph Lameter
2009-03-20 19:01 ` Pekka Enberg
2009-03-20 19:43 ` Nitin Gupta
2009-03-21 10:21 ` Andrew Morton
2009-03-21 12:12 ` Nitin Gupta
2009-03-21 12:24 ` Andrew Morton
2009-03-21 13:14 ` Nitin Gupta
2009-03-21 16:21 ` Pekka Enberg
2009-03-21 17:36 ` Nitin Gupta
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