gh-107710: Speed up logging.getHandlerNames function#107711
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AlexWaygood merged 2 commits intopython:mainfrom Aug 7, 2023
Merged
gh-107710: Speed up logging.getHandlerNames function#107711AlexWaygood merged 2 commits intopython:mainfrom
logging.getHandlerNames function#107711AlexWaygood merged 2 commits intopython:mainfrom
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Lib/logging/__init__.py
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| """ | ||
| result = set(_handlers.keys()) | ||
| return frozenset(result) | ||
| return frozenset(_handlers.keys()) |
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I've tested with frozenset(_handlers) it is a bit slower:
(.venv) ~/Desktop/cpython issue-107710 ✗ 1 ⚠️
» pyperf timeit --setup 'import ex; l = ex.logging' 'l.getHandlerNames()'
.....................
Mean +- std dev: 2.07 us +- 0.02 us
(.venv) ~/Desktop/cpython issue-107710 ✗
» pyperf timeit --setup 'import ex; l = ex.logging' 'l.getHandlerNames()'
.....................
Mean +- std dev: 2.07 us +- 0.01 us
(.venv) ~/Desktop/cpython issue-107710 ✗
» pyperf timeit --setup 'import ex; l = ex.logging' 'l.getHandlerNames()'
.....................
Mean +- std dev: 2.07 us +- 0.01 us
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I don't think a 3us difference is a good enough reason to avoid using the simpler code here. And it is still faster than main :)
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The difference is so small that I would classify this change as a code cleanup rather than an optimization.
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lizzydavis695
approved these changes
Aug 7, 2023
AlexWaygood
approved these changes
Aug 7, 2023
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logging.getHandlerNames()#107710