[issue44037] Broad performance regression from 3.10a7 to 3.10b1 with python.org macOS binaries

Change by Brandt Bucher : -- nosy: +brandtbucher ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail

[issue44037] Broad performance regression from 3.10a7 to 3.10b1 with python.org macOS binaries

Change by STINNER Victor : -- nosy: -vstinner ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.p

[issue44037] Broad performance regression from 3.10a7 to 3.10b1 with python.org macOS binaries

Raymond Hettinger added the comment: > There is no reason to suspect a general Python performance regression > on this benchmark between a7 and b1. Pablo just ran the same benchmarks on Arch Linux and did not observe the degradation, so this does seem specific to the macOS build. --

[issue44037] Broad performance regression from 3.10a7 to 3.10b1 with python.org macOS binaries

Ned Deily added the comment: Thanks for the report, Raymond, and for taking the time to check performance. I am able to reliably reproduce the slowdowns in the benchmark between the 3.10.0a7 and 3.10.0b1 versions provided by the macOS installers on python.org. A similar slowdown is seen on b

[issue44037] Broad performance regression from 3.10a7 to 3.10b1

Change by Jelle Zijlstra : -- nosy: +Jelle Zijlstra ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://m

[issue44037] Broad performance regression from 3.10a7 to 3.10b1

Raymond Hettinger added the comment: Here's the screen shot for Intel silicon running the python dot org macOS build on Big Sur 11.3.1: https://www.dropbox.com/s/7lmf74osvq5seg2/Screen%20Shot%202021-05-03%20at%208.41.52%20PM.png?dl=0 Here are the results on M1 Apple silicon with Big Sure 11.

[issue44037] Broad performance regression from 3.10a7 to 3.10b1

New submission from Raymond Hettinger : Running Tools/scripts/var_access_benchmark.py on the production macOS builds on python.org shows a performance drop-off between alpha-7 and beta-1. Apple Silicon - read local4.1ns -> 4.5ns read non_local4.1ns -> 4.6ns re