lkml.org 
[lkml]   [2002]   [Oct]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [CFT] faster athlon/duron memory copy implementation
Date
On Donnerstag, 24. Oktober 2002 19:15, 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?
>
> Please run 2 or 3 times.

CPU: AMD Athlon(tm) XP 1800+ stepping 02
00:00.0 Host bridge: VIA Technologies, Inc.: Unknown device 3116
00:01.0 PCI bridge: VIA Technologies, Inc. VT8633 [Apollo Pro266 AGP]
512 MB DDR266 (Mem FSB changed to 100MHz due to memory problems)

copy_page() tests
copy_page function 'warm up run' took 20103 cycles per page
copy_page function '2.4 non MMX' took 22612 cycles per page
copy_page function '2.4 MMX fallback' took 22585 cycles per page
copy_page function '2.4 MMX version' took 20088 cycles per page
copy_page function 'faster_copy' took 12198 cycles per page
copy_page function 'even_faster' took 12266 cycles per page
copy_page function 'no_prefetch' took 9244 cycles per page
earny@dev:~/x> ./a.out
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 20051 cycles per page
copy_page function '2.4 non MMX' took 22580 cycles per page
copy_page function '2.4 MMX fallback' took 22610 cycles per page
copy_page function '2.4 MMX version' took 20124 cycles per page
copy_page function 'faster_copy' took 12276 cycles per page
copy_page function 'even_faster' took 12262 cycles per page
copy_page function 'no_prefetch' took 9213 cycles per page
earny@dev:~/x> ./a.out
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 20150 cycles per page
copy_page function '2.4 non MMX' took 22646 cycles per page
copy_page function '2.4 MMX fallback' took 22638 cycles per page
copy_page function '2.4 MMX version' took 20073 cycles per page
copy_page function 'faster_copy' took 12191 cycles per page
copy_page function 'even_faster' took 12261 cycles per page
copy_page function 'no_prefetch' took 9218 cycles per page

------------------
Wow!

<Earny>
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:30    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site