New submission from Mosquito :
I does a small experiment, and found out that if you generate UUID4 with int
instead of sequence of bytes, then the generation of UUID4 occurs up to three
times faster.
.. code-block: python
import random
import uuid
print("uuid.uuid4()")
%timeit uuid.uuid4()
# 5.49 µs ± 120 ns per loop (mean ± std. dev. of 7 runs, 10 loops each)
print("uuid.UUID(int=random.getrandbits(128), version=4)")
%timeit uuid.UUID(int=random.getrandbits(128), version=4)
# 2.58 µs ± 94.5 ns per loop (mean ± std. dev. of 7 runs, 10 loops each)
I have already made fixes to my fork on GH, tell me, will it be useful to
someone else besides me?
--
components: Library (Lib)
files: 0001-Generating-uuid.uuid4-up-to-three-times-faster.patch
keywords: patch
messages: 404607
nosy: mosquito
priority: normal
severity: normal
status: open
title: uuid.uuid4() fast optimization
type: performance
versions: Python 3.10
Added file:
https://bugs.python.org/file50381/0001-Generating-uuid.uuid4-up-to-three-times-faster.patch
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<https://bugs.python.org/issue45556>
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