[issue37562] PEP 590 implementation may have introduced a performance regression

Change by Pablo Galindo Salgado : -- resolution: -> fixed stage: patch review -> resolved status: open -> closed ___ Python tracker ___

[issue37562] PEP 590 implementation may have introduced a performance regression

Jeroen Demeyer added the comment: Please close -- ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue37562] PEP 590 implementation may have introduced a performance regression

Jeroen Demeyer added the comment: PR 14782 (backport of PR 13781) fixes the regression for me. -- ___ Python tracker ___ ___

[issue37562] PEP 590 implementation may have introduced a performance regression

Change by Jeroen Demeyer : -- versions: -Python 3.9 ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue37562] PEP 590 implementation may have introduced a performance regression

Change by Jeroen Demeyer : -- pull_requests: +14579 pull_request: https://github.com/python/cpython/pull/14782 ___ Python tracker ___

[issue37562] PEP 590 implementation may have introduced a performance regression

STINNER Victor added the comment: > can we backport more of the PEP 590 commits to 3.8? Or will the release > manager complain? I would opt for a case by case discussion. Would you be able to identify which master commits have the most significant impact on performance for builtin

[issue37562] PEP 590 implementation may have introduced a performance regression

Jeroen Demeyer added the comment: I did some benchmarks WITHOUT PGO (simply because it's much faster to compile and therefore easier to test things out). The command I used for testing is ./python -m perf timeit --duplicate 200 -s 'f = len; x = ()' 'f(x)' *

[issue37562] PEP 590 implementation may have introduced a performance regression

Change by Mark Shannon : -- keywords: +patch pull_requests: +14529 stage: -> patch review pull_request: https://github.com/python/cpython/pull/14735 ___ Python tracker ___

[issue37562] PEP 590 implementation may have introduced a performance regression

Jeroen Demeyer added the comment: I will certainly have a look and try a few things, but it will probably be next week. -- ___ Python tracker ___

[issue37562] PEP 590 implementation may have introduced a performance regression

Change by Pablo Galindo Salgado : -- title: PEP 590 implementation introduced a performance regression -> PEP 590 implementation may have introduced a performance regression ___ Python tracker