From: Christoph Lameter <clameter@sgi.com>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: akpm@osdl.org, Marcelo Tosatti <marcelo@kvack.org>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
mpm@selenic.com, Manfred Spraul <manfred@colorfullife.com>
Subject: Re: [SLUB 2/3] Large kmalloc pass through. Removal of large general slabs
Date: Wed, 7 Mar 2007 07:34:38 -0800 (PST) [thread overview]
Message-ID: <Pine.LNX.4.64.0703070732130.9460@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <1173258077.6374.120.camel@twins>
On Wed, 7 Mar 2007, Peter Zijlstra wrote:
> > return -1;
> > }
>
> Perhaps so something with PAGE_SIZE here, as you know there are
> platforms/configs where PAGE_SIZE != 4k :-)
Any allocation > 2k just uses a regular allocation which will waste space.
I have a patch here to make this dependent on page size using a loop. The
problem is that it does not work with some versions of gcc. On the
other hand we really need this since one arch can
actually have an order 22 page size!
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next prev parent reply other threads:[~2007-03-07 15:34 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-07 2:35 [SLUB 0/3] SLUB: The unqueued slab allocator V4 Christoph Lameter
2007-03-07 2:35 ` [SLUB 1/3] SLUB core Christoph Lameter
2007-03-07 2:35 ` [SLUB 2/3] Large kmalloc pass through. Removal of large general slabs Christoph Lameter
2007-03-07 2:40 ` Matt Mackall
2007-03-07 3:22 ` Christoph Lameter
2007-03-07 9:01 ` Peter Zijlstra
2007-03-07 15:34 ` Christoph Lameter [this message]
2007-03-07 18:03 ` Matt Mackall
2007-03-07 18:23 ` Christoph Lameter
2007-03-07 2:35 ` [SLUB 3/3] Guarantee minimum number of objects in a slab Christoph Lameter
2007-03-08 10:54 ` [SLUB 0/3] SLUB: The unqueued slab allocator V4 Mel Gorman
2007-03-08 16:48 ` Christoph Lameter
2007-03-08 17:40 ` Mel Gorman
2007-03-08 18:16 ` Christoph Lameter
2007-03-09 13:55 ` Mel Gorman
2007-03-08 21:54 ` Christoph Lameter
2007-03-09 14:00 ` Mel Gorman
2007-03-09 16:40 ` Christoph Lameter
2007-03-09 15:06 ` Mel Gorman
2007-03-09 17:21 ` Christoph Lameter
2007-03-08 17:46 ` Christoph Lameter
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