I compiled 2.4 and 2.5 from svn. The machine is Fedora Core 4, AMD64.
I built both with
./configure && make
(which gives a "64-bit" binary) and then ran pystone with 200000
iterations 10 times:
for i in `seq 1 10`; do ./python Lib/test/pystone.py 200000 ; done
The machine was "near idle" at the time.
The best result for 2.4 (svn revision 43663) was 4.49 seconds (44343.4
pystones/second), which occurred on 4 of the runs.
The best result for 2.5 (svn revision 43675) was 4.27 seconds (46620
pystones/second), which occurred on only one run. 4.29 seconds, the
next best time, occurred on 3 runs.
I'm not trivially able to try a 32-bit build, but for my system it
appears that 2.5 is moderately faster than 2.4 when built with all the
defaults.
Jeff
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