[New-bugs-announce] [issue39425] list.count performance regression
Dong-hee Na
report at bugs.python.org
Wed Jan 22 12:16:03 EST 2020
New submission from Dong-hee Na <donghee.na92 at gmail.com>:
./python.exe -m pyperf timeit -s 'a = [1]*100' 'a.count(1)'
Current Master: Mean +- std dev: 1.05 us +- 0.03 us
My patch: Mean +- std dev: 423 ns +- 11 ns
This is the side-effect of pr 17022.
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assignee: corona10
messages: 360488
nosy: corona10
priority: normal
severity: normal
status: open
title: list.count performance regression
type: performance
versions: Python 3.8, Python 3.9
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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue39425>
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