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SubjectRe: [CFT] faster athlon/duron memory copy implementation
From
SIS735 (ECS7S5A mobo)
Duron 1200 MHz
512 MB PC100

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 24171 cycles per page
copy_page function '2.4 non MMX' took 25359 cycles per page
copy_page function '2.4 MMX fallback' took 25224 cycles per page
copy_page function '2.4 MMX version' took 24149 cycles per page
copy_page function 'faster_copy' took 15660 cycles per page
copy_page function 'even_faster' took 15540 cycles per page
copy_page function 'no_prefetch' took 13853 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 24325 cycles per page
copy_page function '2.4 non MMX' took 25414 cycles per page
copy_page function '2.4 MMX fallback' took 25317 cycles per page
copy_page function '2.4 MMX version' took 24345 cycles per page
copy_page function 'faster_copy' took 15718 cycles per page
copy_page function 'even_faster' took 15553 cycles per page
copy_page function 'no_prefetch' took 13855 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 24225 cycles per page
copy_page function '2.4 non MMX' took 25430 cycles per page
copy_page function '2.4 MMX fallback' took 25398 cycles per page
copy_page function '2.4 MMX version' took 24233 cycles per page
copy_page function 'faster_copy' took 15737 cycles per page
copy_page function 'even_faster' took 15584 cycles per page
copy_page function 'no_prefetch' took 13855 cycles per page

--

"If it's not broken, let's fix it till it is."

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