From: Cody Maloney <cmaloney@users.noreply.github.com>
Date: Wed, 6 Nov 2024 06:54:40 +0000 (-0800)
Subject: gh-120754: Add to `io` optimization to what's new (#126466)
X-Git-Tag: v3.14.0a2~156
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=6431f379b86c2f41a9a9f5a54e77d4e8d556489d;p=thirdparty%2FPython%2Fcpython.git

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

diff --git a/Doc/whatsnew/3.14.rst b/Doc/whatsnew/3.14.rst
index 9300de440cdc..b9d2c27eb9a3 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
 ==========