GeezerVison is showing github.com — gh-145230: Update lockbench.py and benchmark_locks API by gourijain029-del · Pull Request #145271 · python/cpython
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gourijain029-del
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Feb 26, 2026
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edited by bedevere-app
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PR Description
Updates
lockbench.py
and the internal
benchmark_locks
API to support more realistic PyMutex benchmarking.
Key Changes:
New Metrics: Added --work-outside, --num-locks, and --total-iters to simulate varying contention levels and measure fairness.
Redundancy: Removed PyThread_type_lock benchmarking as it now uses PyMutex.
CLI: Switched to argparse and made the number of threads configurable.
Efficiency: Added cache-line padding to mutex states in C to prevent false sharing during multi-lock tests.
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- Remove PyThread_type_lock benchmark as it now uses PyMutex.\n- Add --work-outside to adjust work outside critical sections.\n- Add --num-locks to support benchmarking multiple independent locks.\n- Make number of threads configurable.\n- Add --total-iters for fixed iteration benchmarks.
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Thank you, but I already have a PR that makes the changes I described.
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