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Title: gh-114940: Add a Per-Interpreter Lock For the List of Thread States by ericsnowcurrently · Pull Request #127115 · python/cpython · GitHub

Open Graph Title: gh-114940: Add a Per-Interpreter Lock For the List of Thread States by ericsnowcurrently · Pull Request #127115 · python/cpython

X Title: gh-114940: Add a Per-Interpreter Lock For the List of Thread States by ericsnowcurrently · Pull Request #127115 · python/cpython

Description: The Python programming language. Contribute to python/cpython development by creating an account on GitHub.

Open Graph Description: The new lock may be used instead of the global "HEAD" lock. That global lock guards the list of interpreters, but unfortunately in some situations (like for interp->threads.head) it ha...

X Description: The new lock may be used instead of the global "HEAD" lock. That global lock guards the list of interpreters, but unfortunately in some situations (like for interp->threads...

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gh-114940: Add a Per-Interpreter Lock For the List of Thread Stateshttps://github.com/python/cpython/pull/127115#top
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Nov 21, 2024https://github.com/python/cpython/pull/127115#issue-2680427401
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Add a Per-Interpreter "HEAD" Lock #114940https://github.com/python/cpython/issues/114940
Please reload this pagehttps://github.com/python/cpython/pull/127115
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November 21, 2024 11:10https://github.com/python/cpython/pull/127115#commits-pushed-74ae6de
https://github.com/ericsnowcurrently
Add PyInterpreterState.threads.mutex.https://github.com/python/cpython/pull/127115/commits/74ae6dec333924bbab8dbfa86dafbd77474bafa9
74ae6dehttps://github.com/python/cpython/pull/127115/commits/74ae6dec333924bbab8dbfa86dafbd77474bafa9
https://github.com/ericsnowcurrently
Switch to _Py_FOR_EACH_TSTATE_BEGIN() where possible.https://github.com/python/cpython/pull/127115/commits/af6c962809dbec2a4733b15eb4361e4e431f7246
af6c962https://github.com/python/cpython/pull/127115/commits/af6c962809dbec2a4733b15eb4361e4e431f7246
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Keep using the "head" lock where appropriate.https://github.com/python/cpython/pull/127115/commits/db6269e6285e0d9927dc9c33edee235fafc2a0d2
db6269ehttps://github.com/python/cpython/pull/127115/commits/db6269e6285e0d9927dc9c33edee235fafc2a0d2
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Nov 21, 2024 https://github.com/python/cpython/pull/127115#ref-issue-2115935784
Add a Per-Interpreter "HEAD" Lock #114940 https://github.com/python/cpython/issues/114940
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Nov 21, 2024https://github.com/python/cpython/pull/127115#event-15386327834
gh-114940: Use fine-grained mutex protection for PyInterpreterState.threads #125561 https://github.com/python/cpython/pull/125561
gh-114940: Add a Per-Interpreter Lock For the List of Thread States #127037 https://github.com/python/cpython/pull/127037
https://github.com/ericsnowcurrently
Reinit the new lock upon fork.https://github.com/python/cpython/pull/127115/commits/d1c7c69238651a79e9c3d180a6d69b90f0779895
d1c7c69https://github.com/python/cpython/pull/127115/commits/d1c7c69238651a79e9c3d180a6d69b90f0779895
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Nov 21, 2024https://github.com/python/cpython/pull/127115#issuecomment-2492112301
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Use a recursive lock.https://github.com/python/cpython/pull/127115/commits/a99bfef92ab6ebd29ba476d62674d1e4dd9657a9
a99bfefhttps://github.com/python/cpython/pull/127115/commits/a99bfef92ab6ebd29ba476d62674d1e4dd9657a9
https://github.com/ericsnowcurrently
ericsnowcurrentlyhttps://github.com/ericsnowcurrently
Nov 21, 2024https://github.com/python/cpython/pull/127115#issuecomment-2492487872
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Nov 27, 2024 https://github.com/python/cpython/pull/127115#ref-issue-2688205102
Failed assertion in Python/legacy_tracing.c:431 on a free-threading build #127235 https://github.com/python/cpython/issues/127235
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