x64 speed

"Martin v. Löwis" martin at v.loewis.de
Tue Feb 3 20:58:41 CET 2009


Robin Becker wrote:
> Whilst doing some portability testing with reportlab I noticed a strange
> speedup for our unittest suite with python2.5
> 
> host  win32 xp3 unittest time=42.2 seconds
> vmware RHEL x64 unittest time=30.9 seconds
> 
> so it looks like the vmware emulated system is much faster. Is it the
> x64 working faster at its design sizes or perhaps the compiler or could
> it be the vmware system caching all writes etc etc? 

I follow David's guess that Linux does better IO than Windows (not
knowing anything about the benchmark, of course)

Regards,
Martin



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