[issue47248] Possible slowdown of regex searching in 3.11

[Mark Shannon]

New submission from Mark Shannon <mark at hotpy.org>:

The 3 regular expression benchmarks in the pyperformance suite, regex_v8, regex_effbot and regex_dna show slowdowns between 3% and 10%.

Looking at the stats, nothing seems wrong with specialization or the memory optimizations.

Which strongly suggests a regression in the sre module itself, but I can't say so for certain.

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keywords: 3.11regression
messages: 416923
nosy: Mark.Shannon
priority: normal
severity: normal
status: open
title: Possible slowdown of regex searching in 3.11
type: performance
versions: Python 3.11

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue47248>
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