[Python-checkins] bpo-43452: Document the PyType_Lookup optimizations in the What's New for 3.10 (GH-24949)

[pablogsal]

https://github.com/python/cpython/commit/a054f6b2b1d9f75edfb5ec2247bbf60f07491977
commit: a054f6b2b1d9f75edfb5ec2247bbf60f07491977
branch: master
author: Pablo Galindo <Pablogsal at gmail.com>
committer: pablogsal <Pablogsal at gmail.com>
date: 2021-03-24T00:04:52Z
summary:

bpo-43452: Document the PyType_Lookup optimizations in the What's New for 3.10 (GH-24949)

files:
M Doc/whatsnew/3.10.rst

diff --git a/Doc/whatsnew/3.10.rst b/Doc/whatsnew/3.10.rst
index 7ed43ad819104..97442aa6b3dc6 100644
--- a/Doc/whatsnew/3.10.rst
+++ b/Doc/whatsnew/3.10.rst
@@ -946,7 +946,6 @@ Optimizations
   for more details. (Contributed by Victor Stinner and Pablo Galindo in
   :issue:`38980`.)
 
-
 * Function parameters and their annotations are no longer computed at runtime,
   but rather at compilation time.  They are stored as a tuple of strings at the
   bytecode level. It is now around 2 times faster to create a function with
@@ -958,6 +957,10 @@ Optimizations
   algorithm to avoid quadratic behavior on long strings.  (Contributed
   by Dennis Sweeney in :issue:`41972`)
 
+* Added micro-optimizations to ``_PyType_Lookup()`` to improve type attribute cache lookup
+  performance in the common case of cache hits. This makes the interpreter 1.04 times faster
+  in average (Contributed by Dino Viehland in :issue:`43452`)
+
 Deprecated
 ==========