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

[mike@duncodin.org (Mike Civil)]

ABIT KT7A 896M PC133 

processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 6
model           : 4
model name      : AMD Athlon(tm) processor
stepping        : 4
cpu MHz         : 1333.416
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        : 2660.76


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 23577 cycles per page
copy_page function '2.4 non MMX'	 took 30797 cycles per page
copy_page function '2.4 MMX fallback'	 took 30748 cycles per page
copy_page function '2.4 MMX version'	 took 23793 cycles per page
copy_page function 'faster_copy'	 took 13461 cycles per page
copy_page function 'even_faster'	 took 12599 cycles per page
copy_page function 'no_prefetch'	 took 11218 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 23122 cycles per page
copy_page function '2.4 non MMX'	 took 30279 cycles per page
copy_page function '2.4 MMX fallback'	 took 30452 cycles per page
copy_page function '2.4 MMX version'	 took 23152 cycles per page
copy_page function 'faster_copy'	 took 13367 cycles per page
copy_page function 'even_faster'	 took 12482 cycles per page
copy_page function 'no_prefetch'	 took 11146 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 22860 cycles per page
copy_page function '2.4 non MMX'	 took 30052 cycles per page
copy_page function '2.4 MMX fallback'	 took 30070 cycles per page
copy_page function '2.4 MMX version'	 took 22815 cycles per page
copy_page function 'faster_copy'	 took 13245 cycles per page
copy_page function 'even_faster'	 took 12393 cycles per page
copy_page function 'no_prefetch'	 took 11200 cycles per page

Mike