[issue43889] Pickle performance regression in 3.10

2021-04-24 Thread Ken Jin
Ken Jin added the comment: I'm unable to reproduce the regression locally with pyperformance. Additionally, the links on speed.python.org show that the results returned to normal after a week (again seemingly without any commit to cause such a change). I'm closing this bug as it doesn't seem

[issue43889] Pickle performance regression in 3.10

2021-04-19 Thread Raymond Hettinger
Change by Raymond Hettinger : -- nosy: +rhettinger ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://ma

[issue43889] Pickle performance regression in 3.10

2021-04-19 Thread Ken Jin
Ken Jin added the comment: > It definitely shouldn't be related to any of these, all are unrelated code > paths. Yeah I thought so too :(. After looking at the benchmark code in pyperformance, I can't find anything related in the commits that would cause such a big difference. Hmmm...

[issue43889] Pickle performance regression in 3.10

2021-04-19 Thread Pablo Galindo Salgado
Pablo Galindo Salgado added the comment: It definitely shouldn't be related to any of these, all are unrelated code paths. -- ___ Python tracker ___ _

[issue43889] Pickle performance regression in 3.10

2021-04-19 Thread Ken Jin
New submission from Ken Jin : Hi everyone, I noticed on speed.python.org that the pickle benchmarks are noticeably slower: Overall, pickle slowed down by >10% https://speed.python.org/timeline/?exe=12&base=&ben=pickle&env=1&revs=200&equid=off&quarts=on&extr=on Pickling list and dict is also s