Messages in this thread | | | Date | Thu, 24 Oct 2002 19:41:00 +0200 | From | Andreas Steinmetz <> | Subject | Re: [CFT] faster athlon/duron memory copy implementation |
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Athlon TB 900/VIA KT133
titanic:/tmp # cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 6 model : 4 model name : AMD Athlon(tm) Processor stepping : 2 cpu MHz : 902.075 cache size : 256 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr syscall mmxext 3dnowext 3dnow bogomips : 1795.68
titanic:/tmp # gcc -O3 -s -o athlon athlon.c titanic:/tmp # ./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 13359 cycles per page copy_page function '2.4 non MMX' took 20749 cycles per page copy_page function '2.4 MMX fallback' took 20737 cycles per page copy_page function '2.4 MMX version' took 13545 cycles per page copy_page function 'faster_copy' took 8132 cycles per page copy_page function 'even_faster' took 8123 cycles per page copy_page function 'no_prefetch' took 7648 cycles per page titanic:/tmp # ./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 13398 cycles per page copy_page function '2.4 non MMX' took 20774 cycles per page copy_page function '2.4 MMX fallback' took 20749 cycles per page copy_page function '2.4 MMX version' took 13349 cycles per page copy_page function 'faster_copy' took 8130 cycles per page copy_page function 'even_faster' took 8168 cycles per page copy_page function 'no_prefetch' took 7631 cycles per page titanic:/tmp # ./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 13470 cycles per page copy_page function '2.4 non MMX' took 20780 cycles per page copy_page function '2.4 MMX fallback' took 20784 cycles per page copy_page function '2.4 MMX version' took 13384 cycles per page copy_page function 'faster_copy' took 8172 cycles per page copy_page function 'even_faster' took 8137 cycles per page copy_page function 'no_prefetch' took 7633 cycles per page titanic:/tmp # ./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 13377 cycles per page copy_page function '2.4 non MMX' took 20764 cycles per page copy_page function '2.4 MMX fallback' took 20831 cycles per page copy_page function '2.4 MMX version' took 13336 cycles per page copy_page function 'faster_copy' took 8140 cycles per page copy_page function 'even_faster' took 8131 cycles per page copy_page function 'no_prefetch' took 7670 cycles per page
-- Andreas Steinmetz D.O.M. Datenverarbeitung GmbH
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