perf(test): use Python’s system monitoring facilities to improve performance of test runs #933
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jenstroeger
commented
May 3, 2025
behnazh
requested changes
Jun 14, 2025
| - id: pytest | ||
| name: Run unit tests | ||
| entry: pytest -c pyproject.toml --cov-config pyproject.toml src/package/ tests/ docs/ | ||
| entry: env COVERAGE_CORE=sysmon pytest -c pyproject.toml --cov-config pyproject.toml src/package/ tests/ docs/ |
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Please add a comment based on the PR description to explain why COVERAGE_CORE=sysmon is necessary here, and also mention that this option is only recommended for Python version > 3.12.
behnazh
previously approved these changes
Sep 10, 2025
…ormance of test runs
…else switch to the slow monitoring core for branch coverage
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Based on the Optimizing coverage with Python 3.12’s sys.monitoring blog section, this change almost doubles the performance of test runs (based on trying this change in three production repos).