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From: Christoph Lameter <cl@linux.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Jack Steiner <steiner@sgi.com>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	Pekka Enberg <penberg@cs.helsinki.fi>
Subject: Re: [PATCH] - New round-robin rotor for SLAB allocations
Date: Sat, 1 May 2010 21:06:06 -0500 (CDT)	[thread overview]
Message-ID: <alpine.DEB.2.00.1005012103360.2928@router.home> (raw)
In-Reply-To: <20100430135239.7782f6ba.akpm@linux-foundation.org>

On Fri, 30 Apr 2010, Andrew Morton wrote:

> Why no update to slob and slub?

SLUB does not do things like managing object level NUMAness but relies on
the page allocator to spread page size blocks out. It will only use one
rotor and therefore not skip nodes. The SLAB issues are a result of the
way object level NUMA awareness is implemented there.

SLOB also does not do the SLAB thing and defers to the page allocator.



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      reply	other threads:[~2010-05-02  2:09 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-04-26 21:00 Jack Steiner
2010-04-27  1:48 ` Christoph Lameter
2010-04-30 20:52 ` Andrew Morton
2010-05-02  2:06   ` Christoph Lameter [this message]

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