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| -rw-r--r-- | Doc/whatsnew/3.14.rst | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Doc/whatsnew/3.14.rst b/Doc/whatsnew/3.14.rst index 9300de4..b9d2c27 100644 --- a/Doc/whatsnew/3.14.rst +++ b/Doc/whatsnew/3.14.rst @@ -471,6 +471,15 @@ asyncio reduces memory usage. (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 ========== |