[Python-checkins] bpo-41718: Update runpy startup time What's New (GH-24998)
vstinner
webhook-mailer at python.org
Tue Mar 23 15:22:45 EDT 2021
https://github.com/python/cpython/commit/cd27af70d58161c59072e27a10e0e63dcbf0bccb
commit: cd27af70d58161c59072e27a10e0e63dcbf0bccb
branch: master
author: Victor Stinner <vstinner at python.org>
committer: vstinner <vstinner at python.org>
date: 2021-03-23T20:22:40+01:00
summary:
bpo-41718: Update runpy startup time What's New (GH-24998)
files:
M Doc/whatsnew/3.10.rst
diff --git a/Doc/whatsnew/3.10.rst b/Doc/whatsnew/3.10.rst
index b5e425293962c..e9d29b0449da6 100644
--- a/Doc/whatsnew/3.10.rst
+++ b/Doc/whatsnew/3.10.rst
@@ -922,9 +922,10 @@ Optimizations
(Contributed by Serhiy Storchaka in :issue:`41334`.)
* The :mod:`runpy` module now imports fewer modules.
- The ``python3 -m module-name`` command startup time is 1.3x faster in
- average.
- (Contributed by Victor Stinner in :issue:`41006`.)
+ The ``python3 -m module-name`` command startup time is 1.4x faster in
+ average. On Linux, ``python3 -I -m module-name`` imports 69 modules on Python
+ 3.9, whereas it only imports 51 modules (-18) on Python 3.10.
+ (Contributed by Victor Stinner in :issue:`41006` and :issue:`41718`.)
* The ``LOAD_ATTR`` instruction now uses new "per opcode cache" mechanism. It
is about 36% faster now for regular attributes and 44% faster for slots.
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