linux-kernel - Re: [patch 00/10] [RFC] SLUB patches for more functionality, performance and maintenance

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Message-Id: <20070707.213752.63129539.davem@davemloft.net>
Date:	Sat, 07 Jul 2007 21:37:52 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	clameter@....com
Cc:	linux-kernel@...r.kernel.org, linux-mm@...r.kernel.org,
	suresh.b.siddha@...el.com, corey.d.gough@...el.com,
	penberg@...helsinki.fi, akpm@...ux-foundation.org
Subject: Re: [patch 00/10] [RFC] SLUB patches for more functionality,
 performance and maintenance

From: Christoph Lameter <clameter@....com>
Date: Sat, 07 Jul 2007 20:49:52 -0700

> A cmpxchg is less costly than interrupt enabe/disable

This is cpu dependant, and in fact not true at all on Niagara
and several of the cpus in the UltraSPARC family.
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