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

Brett Cannon brett at python.org
Mon Oct 1 03:49:20 CEST 2012

On Sun, Sep 30, 2012 at 8:28 PM, Antoine Pitrou <solipsis at pitrou.net> wrote:

On Sun, 30 Sep 2012 19:12:47 -0400 Brett Cannon <brett at python.org> wrote: > > ### makov2 ### > Min: 0.137584 -> 0.287701: 2.09x slower > Avg: 0.140620 -> 0.293204: 2.09x slower > Significant (t=-296.14) > Stddev: 0.00243 -> 0.00272: 1.1195x larger

Note that Mako can use the Markupsafe library for faster operation. This will skew the result if one of your Pythons has Markupsafe installed and the other does not.

Should probably have the benchmark print out a warning when markupsafe is used. Turns out I have it installed in my user directory for Python 2.7 so that probably came into play.

Perhaps the benchmark runner should launch its subtests in a controlled environment to avoid such issues?

If we had venv in Python 2.7 that might be easy to do, but otherwise is there an easy way without having to try to pull in virtualenv or something crazy like a chroot or something?

-Brett

(shipping a copy of Markupsafe would not be very practical, because it

has a C extension)

Regards Antoine.

-- Software development and contracting: http://pro.pitrou.net

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