Skip to content

threading.local() access should scale well from multiple threads #128691

Closed
Closed
threading.local() access should scale well from multiple threads#128691
Labels
performancePerformance or resource usagetopic-free-threadingtype-featureA feature request or enhancement

Description

@colesbury
colesbury
opened on Jan 9, 2025

Currently, accessing a threading.local() from multiple threads doesn't scale well because of reference count contention on the shared _thread._local object. We should use deferred reference counting on _thread._local to avoid this bottleneck.

Linked PRs

Activity

  1. colesbury
    added
    performancePerformance or resource usage
    topic-free-threading
    on Jan 9, 2025
  2. colesbury
    added 3 commits that reference this issue on Jan 9, 2025

    pythongh-128691: Use deferred reference counting on `_thread._local`

    af23793

    pythongh-128691: Use deferred reference counting on `_thread._local`

    cc0e189

    pythongh-128691: Use deferred reference counting on `_thread._local`

    a8c2e44
  3. colesbury
    added
    type-featureA feature request or enhancement
    on Jan 9, 2025
  4. colesbury
    added a commit that references this issue on Jan 10, 2025

    Merge branch 'main' into pythongh-128691-thread-local-deferred

    2a328af
  5. colesbury
    changed the title [-]`threading.local()` access should scale well[/-] [+]`threading.local()` access should scale well from multiple threads[/+] on Jan 10, 2025
  6. colesbury
    added a commit that references this issue on Jan 10, 2025

    gh-128691: Use deferred reference counting on `_thread._local` (#128693)

    c141748
  7. colesbury
    closed this as completedon Jan 10, 2025
  8. hugovk
    added 2 commits that reference this issue on Jan 12, 2025

    Revert "pythongh-128691: Use deferred reference counting on `_thread.…

    df78b24

    Revert "pythongh-128691: Use deferred reference counting on `_thread.…

    26de5be
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Metadata

Metadata

Assignees

No one assigned

    Labels

    performancePerformance or resource usagetopic-free-threadingtype-featureA feature request or enhancement

    Projects

    No projects

      Milestone

      No milestone

      Relationships

      None yet

      Development

      No branches or pull requests

      Issue actions