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Date: Mon, 9 Jul 2007 09:00:30 -0700 (PDT)
From: Christoph Lameter <clameter@sgi.com>
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To: Ingo Molnar <mingo@elte.hu>
cc: linux-kernel@vger.kernel.org, linux-mm@vger.kernel.org,
       suresh.b.siddha@intel.com, corey.d.gough@intel.com,
       Pekka Enberg <penberg@cs.helsinki.fi>, akpm@linux-foundation.org,
       Matt Mackall <mpm@selenic.com>
Subject: Re: [patch 09/10] Remove the SLOB allocator for 2.6.23
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On Sun, 8 Jul 2007, Ingo Molnar wrote:

> actually, one real advantage of the SLOB is that it is a minimal, really 
> simple allocator. Its text and data size is so small as well.
> 
> here's the size comparison:
> 
>    text    data     bss     dec     hex filename
>   10788     837      16   11641    2d79 mm/slab.o
>    6205    4207     124   10536    2928 mm/slub.o
>    1640      44       4    1688     698 mm/slob.o
> 
> slab/slub have roughly the same footprint, but slob is 10% of that size. 
> Would be a waste to throw this away.

The last of my tests showed that SLOB is at about 50% of the size of 
SLUB. You need to compile SLUB in embedded mode with !CONFIG_SLUB_DEBUG to 
get a reduce code size.