https://github.com/python/cpython/commit/68b8ffff8c4b20d2f46b708b1a7906377ecc255f commit: 68b8ffff8c4b20d2f46b708b1a7906377ecc255f branch: main author: Shantanu <[email protected]> committer: hauntsaninja <[email protected]> date: 2024-03-06T14:39:43-08:00 summary:
gh-109653: Reduce import overhead of uuid module on Linux (#115160) This follows in the footsteps of #21586 This speeds up import uuid by about 6ms on Linux. Before: ``` λ hyperfine -w 4 "./python -c 'import uuid'" Benchmark 1: ./python -c 'import uuid' Time (mean ± σ): 20.4 ms ± 0.4 ms [User: 16.7 ms, System: 3.8 ms] Range (min … max): 19.6 ms … 21.8 ms 136 runs ``` After: ``` λ hyperfine -w 4 "./python -c 'import uuid'" Benchmark 1: ./python -c 'import uuid' Time (mean ± σ): 14.5 ms ± 0.3 ms [User: 11.5 ms, System: 3.2 ms] Range (min … max): 13.9 ms … 16.0 ms 175 runs ``` files: A Misc/NEWS.d/next/Documentation/2024-02-08-08-51-37.gh-issue-109653.QHLW4w.rst M Lib/uuid.py diff --git a/Lib/uuid.py b/Lib/uuid.py index 470bc0d68597ab..d4e486da15a8d7 100644 --- a/Lib/uuid.py +++ b/Lib/uuid.py @@ -53,8 +53,11 @@ __author__ = 'Ka-Ping Yee <[email protected]>' # The recognized platforms - known behaviors -if sys.platform in ('win32', 'darwin', 'emscripten', 'wasi'): +if sys.platform in {'win32', 'darwin', 'emscripten', 'wasi'}: _AIX = _LINUX = False +elif sys.platform == 'linux': + _LINUX = True + _AIX = False else: import platform _platform_system = platform.system() diff --git a/Misc/NEWS.d/next/Documentation/2024-02-08-08-51-37.gh-issue-109653.QHLW4w.rst b/Misc/NEWS.d/next/Documentation/2024-02-08-08-51-37.gh-issue-109653.QHLW4w.rst new file mode 100644 index 00000000000000..97e0c8df326d69 --- /dev/null +++ b/Misc/NEWS.d/next/Documentation/2024-02-08-08-51-37.gh-issue-109653.QHLW4w.rst @@ -0,0 +1 @@ +Improve import time of :mod:`uuid` on Linux. _______________________________________________ Python-checkins mailing list -- [email protected] To unsubscribe send an email to [email protected] https://mail.python.org/mailman3/lists/python-checkins.python.org/ Member address: [email protected]
