Bug report

Bug description:

The pi benchmark in Modules/_decimal/tests/bench.py is up to 31% slower with --enable-gil and up to 45% slower with --disable-gil compared to Python 3.9 as the baseline.

Change the number of iterations to 100000 for more stable benchmarks.

This is heavily OS and hardware dependent. The worst case cited above was observed on a six core i5-8600K.

CPython versions tested on:

CPython main branch

Operating systems tested on:

Linux

Linked PRs

• gh-114682: Use METH_METHOD calling convention in _decimal #115196
• gh-114682: Improve performance of module state access in _decimal #115401