linux-kernel - Re: [PATCH] use movntq version of fast_clear_page/fast_copy

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Message-ID: <20070214195546.GA2005@redhat.com>
Date:	Wed, 14 Feb 2007 14:55:46 -0500
From:	Dave Jones <davej@...hat.com>
To:	Marcelo Tosatti <marcelo@...ck.org>
Cc:	Jordan Crouse <jordan.crouse@....com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] use movntq version of fast_clear_page/fast_copy_page on Geode

On Wed, Feb 14, 2007 at 05:08:39PM -0200, Marcelo Tosatti wrote:
 > 
 > movntq instruction is supported by Geode CPU's, so use
 > fast_clear_page/fast_copy_page versions that have it.

it's supported, but is it a win ?
The same was also true of the VIA C3/C7's, but due to
poor memory bandwidth, it turned out to be slower in most cases.

		Dave

-- 
http://www.codemonkey.org.uk
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