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gh-120754: Add to `io` optimization to what's new (#126466)

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Cody Maloney 2024-11-05 22:54:40 -08:00 committed by GitHub
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@ -471,6 +471,15 @@ asyncio
reduces memory usage. reduces memory usage.
(Contributed by Kumar Aditya in :gh:`107803`.) (Contributed by Kumar Aditya in :gh:`107803`.)
io
---
* :mod:`io` which provides the built-in :func:`open` makes less system calls
when opening regular files as well as reading whole files. Reading a small
operating system cached file in full is up to 15% faster.
:func:`pathlib.Path.read_bytes` has the most optimizations for reading a
file's bytes in full. (Contributed by Cody Maloney and Victor Stinner in
:gh:`120754` and :gh:`90102`.)
Deprecated Deprecated
========== ==========