[Pythonmac-SIG] Pystone numbers for different Macs...

Ian Baird ibaird at gmail.com
Sun Jan 20 22:02:40 CET 2008

Hmm - that appears to be negligible if not within the bounds of  
statistical error. However, you're right - a small bump in speed.

A Quick Aside:

Benchmarking the diff routines on my app (Changes - http://changesapp.com/) 
  showed a 10-15% performance increase going from 32-bit i386 to 64- 
bit x86-64. I'm pretty sure that this is due to vast architectural  
improvements in x86-64 vs. i386 (more GPRs, etc.). Unfortunately, due  
to bugs in 64-bit Cocoa, I can't ship a 64-bit binary. The results of  
benchmarking 32-bit ppc to 64-bit ppc64 showed a negligible/non- 
existent improvement. This app was implemented using C/C++ and ObjC.

- Ian

On Jan 20, 2008, at 1:16 PM, skip at pobox.com wrote:

>    Ian> It would be interesting to see if that held up on ppc64. My  
> guess
>    Ian> is that it would benchmark slower in 64-bit mode than 32-bit  
> mode
>    Ian> on ppc.
> I added a pystone entry to the table for my G5 with the Python 2.6a0
> interpreter compiled with -fast -fPIC -fwrapv.  I saw a reasonable  
> speedup
> (35461 -> 37313).
> Skip

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