[Python-Dev] Benchmarking Python 3.3 against Python 2.7 (wide build)

[Steven D'Aprano]

On Sun, Sep 30, 2012 at 07:12:47PM -0400, Brett Cannon wrote:

> > python3 perf.py -T --basedir ../benchmarks -f -b py3k
> ../cpython/builds/2.7-wide/bin/python ../cpython/builds/3.3/bin/python3.3

> ### call_method ###
> Min: 0.491433 -> 0.414841: 1.18x faster
> Avg: 0.493640 -> 0.416564: 1.19x faster
> Significant (t=127.21)
> Stddev: 0.00170 -> 0.00162: 1.0513x smaller

I'm not sure if this is the right place to discuss this, but what is the 
justification for recording the average and std deviation of the 
benchmarks?

If the benchmarks are based on timeit, the timeit docs warn against 
taking any statistic other than the minimum.



-- 
Steven