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Thu Jun 8 16:53:43 CEST 2006 · https://mail.python.org/pipermail/python-dev/2006-June/065703.html

Thomas Wouters wrote:
> 
> 
> On 6/8/06, *M.-A. Lemburg* <mal at egenix.com <mailto:mal at egenix.com>> wrote:
> 
>     Perhaps it's a new feature in gcc 4.0 that makes the slow-down I see
>     turn into a speedup :-)
> 
> 
> It seems so. I tested with gcc 2.95, 3.3 and 4.0 on FreeBSD 4.10 (only 
> machine I had available with those gcc versions) and both 2.95 and 4.0 
> show a 10-20% speedup of your testcase in 2.5 compared to 2.4. 3.3 
> showed a 10% slowdown or so.

Does 4.0 show a general slowdown on your test machines? I saw a drop
of average Pystones from 44000 to 40000 and from 42000 to 39000 on
my boxes switching from GCC 3.4.6 to 4.1.1.

Georg

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