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

To: "Keir Fraser" <keir.fraser@xxxxxxxxxxxxx>, "Dexuan Cui" <dexuan.cui@xxxxxxxxx>, "Dan Magenheimer" <dan.magenheimer@xxxxxxxxxx>
From: "Jan Beulich" <jbeulich@xxxxxxxxxx>
Date: Tue, 13 Jan 2009 08:27:47 +0000
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
Delivery-date: Tue, 13 Jan 2009 00:27:43 -0800
List-id: Xen developer discussion <xen-devel.lists.xensource.com>

>>> 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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References:
- RE: [Xen-devel] [PATCH] x86: add SSE-based copy_page()
  - From: Dan Magenheimer

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