Re: [CFT] faster athlon/duron memory copy implementation

Roger Luethi (rl@hellgate.ch)
Thu, 24 Oct 2002 19:53:01 +0200


Athlon 1400, ALi chipset, 1 GB SDRAM

Deviation in 3 runs < 1%.

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 29353 cycles per page
copy_page function '2.4 non MMX' took 34621 cycles per page
copy_page function '2.4 MMX fallback' took 34606 cycles per page
copy_page function '2.4 MMX version' took 29239 cycles per page
copy_page function 'faster_copy' took 17236 cycles per page
copy_page function 'even_faster' took 17453 cycles per page
copy_page function 'no_prefetch' took 12628 cycles per page
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