linux-kernel - Re: [this_cpu_xx V6 7/7] this_cpu: slub aggressive use of this

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Message-ID: <alpine.DEB.1.10.0910121055160.7932@gentwo.org>
Date:	Mon, 12 Oct 2009 10:55:43 -0400 (EDT)
From:	Christoph Lameter <cl@...ux-foundation.org>
To:	Pekka Enberg <penberg@...helsinki.fi>
cc:	Tejun Heo <tj@...nel.org>, linux-kernel@...r.kernel.org,
	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>,
	Mel Gorman <mel@....ul.ie>,
	David Rientjes <rientjes@...gle.com>,
	Zhang Yanmin <yanmin_zhang@...ux.intel.com>
Subject: Re: [this_cpu_xx V6 7/7] this_cpu: slub aggressive use of this_cpu
  operations in the hotpaths

On Mon, 12 Oct 2009, Pekka Enberg wrote:

> The patch looks sane to me but the changelog contains no relevant
> numbers on performance. I am fine with the patch going in -percpu but
> the patch probably needs some more beating performance-wise before it
> can go into .33. I'm CC'ing some more people who are known to do SLAB
> performance testing just in case they're interested in looking at the
> patch. In any case,

I am warming up my synthetic in kernel tests right now. Hope I have
something by tomorrow.

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