From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Jan Beulich" <jbeulich@novell.com>
Subject: RE: [PATCH] x86: add SSE-based copy_page()
Date: Wed, 12 Nov 2008 15:01:06 +0000
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To: xen-devel@lists.xensource.com, Dan Magenheimer <dan.magenheimer@oracle.com>
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>>> Dan Magenheimer <dan.magenheimer@oracle.com> 12.11.08 15:51 >>>
>I assume the 12% faster is on a benchmark...

It's the win for an application doing nothing but dirtying private =
mappings
of a file. That seemed like the least overhead test that wouldn't require =
any
special testing code in kernel or hypervisor.

>Have you measured how much faster the copy_page_sse2
>routine (standalond) is than the memcpy?  Is it a
>factor of 2?

No, I didn't.

Jan