bpo-41902: Micro optimization for compute_item of range#22492
Merged
methane merged 2 commits intopython:masterfrom Oct 21, 2020
Merged
bpo-41902: Micro optimization for compute_item of range#22492methane merged 2 commits intopython:masterfrom
methane merged 2 commits intopython:masterfrom
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We can optimize PyNumber_Multiply but that task should be done after #22480 is well discussed. |
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import pyperf
runner = pyperf.Runner()
runner.timeit(name="bench range compute",
stmt="""
v = a[100:200]
vs = a[s]
""",
setup= """
a = range(0, 11111111)
s = slice(100, 200)
""")Mean +- std dev: [master-compute] 317 ns +- 3 ns -> [bpo-41902-compute] 287 ns +- 6 ns: 1.11x faster (-10%) |
vstinner
reviewed
Oct 2, 2020
Co-authored-by: Victor Stinner <vstinner@python.org>
methane
approved these changes
Oct 21, 2020
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https://bugs.python.org/issue41902