[hashcash] 300Mhz amd k6-2

  • From: Adam Back <adam@xxxxxxxxxxxxxxx>
  • To: hashcash@xxxxxxxxxxxxx
  • Date: Sat, 05 Jun 2004 23:03:12 +0100

Eh well my laptop is dying, so I had the occasion to install fedora
core2 on my old amd k6-2 300Mhz.

So here is the speed result:

-O3 -funroll-loops -march=k6-2 -mmmx -m3dnow

    Rate  Name (* machine default)
   207145 ANSI Compact 1-pipe
   189855 ANSI Standard 1-pipe
   188927 ANSI Compact 2-pipe
   180969 ANSI Standard 2-pipe
   429635 AMD64/x86 MMX Compact 1x2-pipe
   397265 AMD64/x86 MMX Standard 1x2-pipe *

so 429635 for a 300Mhz cpu vs 3741983 for a 3.06Ghz cpu is a factor of
8.7 slower but a factor of 10.2 difference in clock rate.  AMD k6-2 is
doing not bad for a 2 generations older 1/10th clock rate cpu.


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