Re: Athlon problem report summary

Disconnect (lkml@sigkill.net)
Sat, 21 Apr 2001 11:07:17 -0400


> I wrote a set of programs to tune the MMX code. Arjan I suspect did similar
> when he reoptimised the code for the newer Athlon. Simple stuff like

Alan - your proggy ran (no output) for about 5 seconds or so, then exited.

Arjan - from yours, I get the results below. Either way, no OOPs, no
errors, etc. (Felt pretty silly as I remounted all my drives and brought
it back up to multi-user mode ;) ..)

So am I correct in assuming at this point that MMX is working fine on this
mobo/chip combo? What's next?

Athlon test program $Id: fast.c,v 1.6 2000/09/23 09:05:45 arjan Exp $
clear_page() tests
clear_page function 'warm up run' took 16151 cycles per page
clear_page function '2.4 non MMX' took 11893 cycles per page
clear_page function '2.4 MMX fallback' took 11736 cycles per page
clear_page function '2.4 MMX version' took 10436 cycles per page
clear_page function 'faster_clear_page' took 4998 cycles per page
clear_page function 'even_faster_clear' took 4881 cycles per page

copy_page() tests
copy_page function 'warm up run' took 17595 cycles per page
copy_page function '2.4 non MMX' took 26701 cycles per page
copy_page function '2.4 MMX fallback' took 26708 cycles per page
copy_page function '2.4 MMX version' took 17649 cycles per page
copy_page function 'faster_copy' took 10480 cycles per page
copy_page function 'even_faster' took 10464 cycles per page

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