gh-112529: Use atomic operations for `gcstate->collecting`#112533

Merged

pablogsal merged 2 commits intopython:mainfrom colesbury:gc-collecting

Dec 11, 2023

+168-184

Commits on Nov 29, 2023

pythongh-112529 : Use atomic operations for gcstate->collecting
colesbury
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Commits on Dec 11, 2023

Move stats zeroing after check
colesbury
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