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Title: gh-145230: Update lockbench by colesbury · Pull Request #145231 · python/cpython · GitHub

Open Graph Title: gh-145230: Update lockbench by colesbury · Pull Request #145231 · python/cpython

X Title: gh-145230: Update lockbench by colesbury · Pull Request #145231 · python/cpython

Description: 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: gh-145230

Open Graph Description: 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_loc...

X Description: 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_loc...

Opengraph URL: https://github.com/python/cpython/pull/145231

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f4671b5 gh-145230: Update lockbench colesbury Feb 23, 2026 https://github.com/python/cpython/pull/145231/commits/f4671b5eff0d42710fd76bd94a47405446ed4554
441b11d Add --random-locks option colesbury Feb 25, 2026 https://github.com/python/cpython/pull/145231/commits/441b11dd68b1425cc26ffeeed7c6604cb1303ab4
0bb9eb7 Use positional only arguments to avoid WASI build failure colesbury Feb 25, 2026 https://github.com/python/cpython/pull/145231/commits/0bb9eb759146fa17b12980c4879225a992c94209
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