Messages in this thread |  | | Date | Wed, 19 Sep 2001 22:52:34 +0200 | From | Vojtech Pavlik <> | Subject | Re: [PATCH] Athlon bug stomper. Pls apply. |
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On Wed, Sep 19, 2001 at 09:15:17PM +0000, Petr Vandrovec wrote: > On 19 Sep 01 at 19:55, Arjan van de Ven wrote: > > > > Ok but that part is simple: > > > > run > > > > http://www.fenrus.demon.nl/athlon.c > > Small question - is it OK that 'faster_copy' is faster than > 'even_faster'? By only few percents, but... It is dual cpu Tyan, > with two AMD MP 1.2MHz, with 1022:700C AMD hostbridge. I'll > check KT133 at home if I'll remember...
Same here. In a quite number of cases, even_faster is actually slower. Not always, though. I suspect the measurement is not really exact.
> Thanks, > Petr Vandrovec > vandrove@vc.cvut.cz > > > 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 13967 cycles per page > clear_page function '2.4 non MMX' took 9298 cycles per page > clear_page function '2.4 MMX fallback' took 9284 cycles per page > clear_page function '2.4 MMX version' took 8508 cycles per page > clear_page function 'faster_clear_page' took 4016 cycles per page > clear_page function 'even_faster_clear' took 3916 cycles per page > > copy_page() tests > copy_page function 'warm up run' took 15118 cycles per page > copy_page function '2.4 non MMX' took 17002 cycles per page > copy_page function '2.4 MMX fallback' took 16978 cycles per page > copy_page function '2.4 MMX version' took 15163 cycles per page > copy_page function 'faster_copy' took 8569 cycles per page > copy_page function 'even_faster' took 8805 cycles per page > - > 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/
-- Vojtech Pavlik SuSE Labs - 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/
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