GV

GeezerVison

The World Wide Web, restored to 800 pixels of glory.

Home|About|Gaming cabinet|Archives|How it works|Starter sites

On this site

  • Sign in
  • ActionsCI/CD and automation
  • CodespacesCloud development environments
  • All Features
  • Documentation
  • Training
  • Certifications
  • Build with Copilot
  • Customize Copilot
  • Integrations
  • Trending repos
  • GitHub Sponsors
  • Developer articles
  • Enterprises

This view

  • Original page
  • New address

GeezerVison is showing github.com — gh-145230: Update lockbench by colesbury · Pull Request #145231 · python/cpython

Conversation

@colesbury

@colesbury colesbury commented Feb 25, 2026 •
edited
Loading

Uh oh!

There was an error while loading. Please reload this page.

Copy link
Copy Markdown
Contributor

Remove PyThread_type_lock (now uses PyMutex internally).

Add new benchmark options:

  • work_inside/work_outside: control work inside and outside the critical section to vary contention levels
  • num_locks: use multiple independent locks with threads assigned round-robin
  • total_iters: fixed iteration count per thread instead of time-based, useful for measuring fairness
  • num_acquisitions: lock acquisitions per loop iteration
  • random_locks: acquire random lock each iteration

Also return elapsed time from benchmark_locks() and switch lockbench.py to use argparse.

  • Issue: Update lockbench.py #145230

Sorry, something went wrong.

Uh oh!

There was an error while loading. Please reload this page.

All reactions
@colesbury
pythongh-145230: Update lockbench
f4671b5
Remove PyThread_type_lock (now uses PyMutex internally).

Add new benchmark options:
- work_inside/work_outside: control work inside and outside the
  critical section to vary contention levels
- num_locks: use multiple independent locks with threads assigned
  round-robin
- total_iters: fixed iteration count per thread instead of time-based,
  useful for measuring fairness
- num_acquisitions: lock acquisitions per loop iteration

Also return elapsed time from benchmark_locks() and switch lockbench.py
to use argparse.
@colesbury colesbury added the skip news label Feb 25, 2026
@bedevere-app bedevere-app Bot mentioned this pull request Feb 25, 2026
Update lockbench.py #145230
Closed
colesbury added 2 commits February 25, 2026 15:08
@colesbury
Add --random-locks option
441b11d
Similar to https://github.com/matklad/lock-bench
@colesbury
Use positional only arguments to avoid WASI build failure
0bb9eb7
@colesbury
colesbury marked this pull request as ready for review February 27, 2026 15:44
@bedevere-app bedevere-app Bot added the awaiting core review label Feb 27, 2026
@colesbury
colesbury requested a review from mpage February 27, 2026 15:44
mpage
mpage approved these changes Feb 27, 2026
View reviewed changes
@bedevere-app bedevere-app Bot added awaiting merge and removed awaiting core review labels Feb 27, 2026
@colesbury
colesbury merged commit 72eca2a into python:main Feb 27, 2026
69 checks passed

Uh oh!

There was an error while loading. Please reload this page.

@colesbury
colesbury deleted the gh-145230-lockbench-update branch February 27, 2026 19:09
@bedevere-app bedevere-app Bot removed the awaiting merge label Feb 27, 2026
brijkapadia pushed a commit to brijkapadia/cpython that referenced this pull request Feb 28, 2026
@colesbury @brijkapadia
pythongh-145230: Update lockbench (pythongh-145231)
07be84d
Remove PyThread_type_lock (now uses PyMutex internally).

Add new benchmark options:
- work_inside/work_outside: control work inside and outside the critical section to vary contention levels
- num_locks: use multiple independent locks with threads assigned round-robin
- total_iters: fixed iteration count per thread instead of time-based, useful for measuring fairness
- num_acquisitions: lock acquisitions per loop iteration
- random_locks: acquire random lock each iteration

Also return elapsed time from benchmark_locks() and switch lockbench.py to use argparse.
ljfp pushed a commit to ljfp/cpython that referenced this pull request Apr 25, 2026
@colesbury @ljfp
pythongh-145230: Update lockbench (pythongh-145231)
c240b6f
Remove PyThread_type_lock (now uses PyMutex internally).

Add new benchmark options:
- work_inside/work_outside: control work inside and outside the critical section to vary contention levels
- num_locks: use multiple independent locks with threads assigned round-robin
- total_iters: fixed iteration count per thread instead of time-based, useful for measuring fairness
- num_acquisitions: lock acquisitions per loop iteration
- random_locks: acquire random lock each iteration

Also return elapsed time from benchmark_locks() and switch lockbench.py to use argparse.
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Reviewers

@mpage mpage mpage approved these changes

Uh oh!

There was an error while loading. Please reload this page.

Assignees

No one assigned

Labels

skip news

Projects

None yet

Milestone

No milestone

Development

Successfully merging this pull request may close these issues.

Uh oh!

There was an error while loading. Please reload this page.

2 participants

@colesbury @mpage
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
You are visitor 01402503 — GeezerVison does not store the pages you look up.
Best viewed with Netscape Navigator 4.7 or Internet Explorer 6 at 800×600. No cookies required.