linux-kernel - Re: [SLUB 2/3] Large kmalloc pass through. Removal of large general slabs

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Message-ID: <20070307024043.GT23311@waste.org>
Date:	Tue, 6 Mar 2007 20:40:44 -0600
From:	Matt Mackall <mpm@...enic.com>
To:	Christoph Lameter <clameter@....com>
Cc:	akpm@...l.org, Marcelo Tosatti <marcelo@...ck.org>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Manfred Spraul <manfred@...orfullife.com>
Subject: Re: [SLUB 2/3] Large kmalloc pass through. Removal of large general slabs

On Tue, Mar 06, 2007 at 06:35:16PM -0800, Christoph Lameter wrote:
> Unlimited kmalloc size and removal of general caches >=4.
> 
> We can directly use the page allocator for all allocations 4K and larger. This
> means that no general slabs are necessary and the size of the allocation passed
> to kmalloc() can be arbitrarily large. Remove the useless general caches over 4k.

I've been meaning to do this in SLOB as well. Perhaps it warrants
doing in stock kmalloc? I've got a grand total of 18 of these objects
here.

The downside is this makes them suddenly disappear off the slabinfo
radar.

-- 
Mathematics is the supreme nostalgia of our time.
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