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Subject: Re: [CFT] faster athlon/duron memory copy implementation
From: Robert Love <rml@tech9.net>
To: Manfred Spraul <manfred@colorfullife.com>
Cc: linux-kernel@vger.kernel.org, arjanv@redhat.com
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Date: 24 Oct 2002 13:37:34 -0400
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On Thu, 2002-10-24 at 13:15, Manfred Spraul wrote:

> Attached is a test app that compares several memory copy implementations.
> Could you run it and report the results to me, together with cpu, 
> chipset and memory type?

Hi Manfred.  Below is the average of three runs.

Dual Athlon 1600, AMD 760M chipset, 2GB of ECC DDR266.

Looks like AMD is right :)

Athlon test program $Id: fast.c,v 1.6 2000/09/23 09:05:45 arjan Exp $

copy_page() tests
copy_page function 'warm up run'         took 18622 cycles per page
copy_page function '2.4 non MMX'         took 21086 cycles per page
copy_page function '2.4 MMX fallback'    took 21096 cycles per page
copy_page function '2.4 MMX version'     took 18498 cycles per page
copy_page function 'faster_copy'         took 10311 cycles per page
copy_page function 'even_faster'         took 10464 cycles per page
copy_page function 'no_prefetch'         took 8589 cycles per page

	Robert Love

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