Python 2.1 performance
Michael Hudson
mwh21 at cam.ac.uk
Fri Apr 20 06:13:30 EDT 2001
Per Gummedal <p.g at figu.no> writes:
> Running pystone (average 3)
> AMD Duron 650 - win2000
>
> 1.5.2 - 10605
> 2.0 - 10282
> 2.1 - 9482
>
> Is pystone a special case or is there a general drop in performance ?
Both, probably. pystone isn't particularly typical code - it accesses
globabl variables a lot, for one thing - but 2.1 probably is going to
be a little slower. This is could be due to the rich comparisons, but
I doubt anyone really knows.
I had a whirl on this sort of thing a while back; you can see my
results here (on linux/x86):
http://mail.python.org/pipermail/python-dev/2001-January/012330.html
mal's pybench makes the CVS of about 3 months back about 3% slower
than Python 2.0; I *doubt* the released version was much different
(but as I said in a post yesterday - this is a hunch about
performance, and therefore probably wrong).
Can you try building using the optional memory allocator? I don't
know how you do that on Windows, but it would be interesting.
Cheers,
M.
--
I don't remember any dirty green trousers.
-- Ian Jackson, ucam.chat
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