Description

ericsnowcurrently

opened on Apr 6, 2023

Issue body actions

(This is a revival of gh-84702, which @vstinner worked on several years ago.)

For a per-interpreter GIL (PEP 684) we need to start storing the "current" thread state in a thread-local variable, rather than _PyRuntime.tstate_current. There may be other benefits to the approach if we can take advantage of native compiler support (e.g. C11's __thread_local).

Also see https://discuss.python.org/t/how-to-get-the-current-thread-state/22655.

Linked PRs

• gh-103323: Get the "Current" Thread State from a Thread-Local Variable #103324
• gh-103323: Remove PyRuntimeState_GetThreadState() #104171
• gh-103323: Remove current_fast_get() unused parameter #114593

Activity

1. ericsnowcurrently

   added

   type-featureA feature request or enhancementA feature request or enhancement

   interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

   3.12only security fixesonly security fixes

   on Apr 6, 2023
2. ericsnowcurrently commented on Apr 6, 2023

   

   ericsnowcurrently

   on Apr 6, 2023

   MemberAuthor

   More actions

   CC @markshannon
3. ericsnowcurrently

   added a commit that references this issue on Apr 24, 2023

   gh-103323: Get the "Current" Thread State from a Thread-Local Variable (

   f8abfa3
4. carljm

   added 2 commits that reference this issue on Apr 24, 2023

   Merge branch 'main' into superopt

   19b8025

   Merge branch 'superopt' into superopt_spec

   1972ca4
5. hauntsaninja commented on Apr 26, 2023

   

   hauntsaninja

   on Apr 26, 2023

   Contributor

   More actions

   Looks like this was completed, thanks!

   Reacted by Eric Snow
6. hauntsaninja

   closed this as completedon Apr 26, 2023
7. vstinner

   added 3 commits that reference this issue on May 4, 2023

   pythongh-103323: Remove PyRuntimeState_GetThreadState()

   1257ecf

   pythongh-103323: Remove PyRuntimeState_GetThreadState()

   aed221f

   gh-103323: Remove PyRuntimeState_GetThreadState() (#104171)

   45398ad
8. vstinner

   added 2 commits that reference this issue on Jan 26, 2024

   pythongh-103323: Remove current_fast_get() unused parameter

   ddce5a1

   gh-103323: Remove current_fast_get() unused parameter (#114593)

   58f883b
9. aisk

   added a commit that references this issue on Feb 11, 2024

   pythongh-103323: Remove current_fast_get() unused parameter (python#1…

   b81e357
10. florianl

    added 3 commits that reference this issue on Jan 23, 2026

    python: get the Thread State from a Thread-local

    0caf197

    python: get the Thread State from a Thread-local

    4bdc15b

    python: get the Thread State from a Thread-local

    022c775

Issue actions