[Python-Dev] Help requested with Python 2.7 performance regression (original) (raw)

Louis Bouchard louis.bouchard at canonical.com
Fri Mar 3 10:27:24 EST 2017

Hello,

Le 03/03/2017 à 15:37, Louis Bouchard a écrit :

Hello,

Le 03/03/2017 à 15:31, Victor Stinner a écrit :

Out of curiosity, I ran the set of benchmarks in two LXC containers running centos7 (2.7.5 + gcc 4.8.5) and Fedora 25 (2.7.13 + gcc 6.3.x). The benchmarks do run faster in 18 benchmarks, slower on 12 and insignificant for the rest (~33 from memory).

"faster" or "slower" is relative: I would like to see the ?.??x faster/slower or percent value. Can you please share the result? I don't know what is the best output: python3 -m performance compare centos.json fedora.json or the new: python3 -m perf compareto centos.json fedora.json --table --quiet Victor All the results, including the latest are in the spreadsheet here (cited in the analysis document) : https://docs.google.com/spreadsheets/d/1pKCOpyu4HUyw9YtJugn6jzVGazeDmBVNzqmXHtM6gM/edit#gid=1548436297 Third column is the ?.??x value that you are looking for, taken directly out of the 'pyperformance analyze' results. I didn't know about the new options, I'll give it a spin & see if I can get a better format.

All the benchmark data using the new format have been uploaded to the spreadsheet. Each sheet is prefixed with pct_.

HTH,

Kind regards,

...Louis

-- Louis Bouchard Software engineer, Cloud & Sustaining eng. Canonical Ltd Ubuntu developer Debian Maintainer GPG : 429D 7A3B DD05 B6F8 AF63 B9C4 8B3D 867C 823E 7A61

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