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Merged
merged 2 commits into from
Jun 29, 2025
Merged

gh-136066: simplify platform._platform() #136069

merged 2 commits into from
Jun 29, 2025

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picnixz
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@picnixz picnixz commented Jun 28, 2025 •
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sobolevn
sobolevn reviewed Jun 28, 2025
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Can you please provide a benchmark for realistical platforms and some unrealistically big ones?

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picnixz commented Jun 28, 2025 •
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Can you please provide a benchmark for realistical platforms and some unrealistically big ones?

For realistic ones, there should be no difference (because the strings are REALLY small). For unrealistically big ones, I'll write them.

serhiy-storchaka
serhiy-storchaka reviewed Jun 28, 2025
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@picnixz picnixz changed the title gh-136066: reduce asymptotic complexity of platform._platform() gh-136066: simplify platform._platform() Jun 28, 2025
@picnixz picnixz added the type-refactor Code refactoring (with no changes in behavior) label Jun 28, 2025
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picnixz commented Jun 28, 2025

For the benchmarks:

./python -m pyperf timeit -s 'import platform; s="-" *1_000_000' 'platform._platform(s)'

On a PGO+LTO build:

Mean +- std dev: [ref] 5.83 ms +- 0.12 ms -> [new] 881 us +- 11 us: 6.62x faster

sobolevn
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Awesome results! Thank you!

@picnixz picnixz merged commit bd928a3 into python:main Jun 29, 2025
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@picnixz picnixz deleted the refactor/platform/strip-136066 branch June 29, 2025 07:56
AndPuQing pushed a commit to AndPuQing/cpython that referenced this pull request Jul 11, 2025
@picnixz @AndPuQing
pythongh-136066: simplify platform._platform() (python#136069)
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Pranjal095 pushed a commit to Pranjal095/cpython that referenced this pull request Jul 12, 2025
@picnixz @Pranjal095
pythongh-136066: simplify platform._platform() (python#136069)
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taegyunkim pushed a commit to taegyunkim/cpython that referenced this pull request Aug 4, 2025
@picnixz @taegyunkim
pythongh-136066: simplify platform._platform() (python#136069)
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Agent-Hellboy pushed a commit to Agent-Hellboy/cpython that referenced this pull request Aug 19, 2025
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pythongh-136066: simplify platform._platform() (python#136069)
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