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On October 24, 2002 10:15, 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.
Athlon XP 1800+, 512MB 133mhz SDRAM, Debian GCC 3.2.1 snapshot.
~$: gcc -march=athlon-xp -O2 athlon.c -o athlon
~$: ./athlon; ./athlon; ./athlon
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 28161 cycles per page
copy_page function '2.4 non MMX' took 31398 cycles per page
copy_page function '2.4 MMX fallback' took 31442 cycles per page
copy_page function '2.4 MMX version' took 28130 cycles per page
copy_page function 'faster_copy' took 19112 cycles per page
copy_page function 'even_faster' took 17413 cycles per page
copy_page function 'no_prefetch' took 12708 cycles per page
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 28171 cycles per page
copy_page function '2.4 non MMX' took 31226 cycles per page
copy_page function '2.4 MMX fallback' took 31178 cycles per page
copy_page function '2.4 MMX version' took 28055 cycles per page
copy_page function 'faster_copy' took 17193 cycles per page
copy_page function 'even_faster' took 17287 cycles per page
copy_page function 'no_prefetch' took 12711 cycles per page
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 27955 cycles per page
copy_page function '2.4 non MMX' took 31069 cycles per page
copy_page function '2.4 MMX fallback' took 33483 cycles per page
copy_page function '2.4 MMX version' took 27917 cycles per page
copy_page function 'faster_copy' took 17120 cycles per page
copy_page function 'even_faster' took 17271 cycles per page
copy_page function 'no_prefetch' took 12712 cycles per page
- -Ryan
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This archive was generated by hypermail 2b29 : Thu Oct 31 2002 - 22:00:25 EST