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RE: [Xen-devel] [PATCH] x86: add SSE-based copy_page()

from [Jan Beulich] [Permanent Link][Original]
To: "Keir Fraser" <keir.fraser@xxxxxxxxxxxxx>, "Dexuan Cui" <dexuan.cui@xxxxxxxxx>, "Dan Magenheimer" <dan.magenheimer@xxxxxxxxxx>
Subject: RE: [Xen-devel] [PATCH] x86: add SSE-based copy_page()
From: "Jan Beulich" <jbeulich@xxxxxxxxxx>
Date: Tue, 13 Jan 2009 08:27:47 +0000
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>>> Dan Magenheimer <dan.magenheimer@xxxxxxxxxx> 13.01.09 00:29 >>>
>I'm guessing the gcc optimizer for the memcpy code was tuned
>for an Intel pipeline... Jan, were you measuring on an
>AMD processor?

Indeed.

Jan


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