[Python-checkins] bpo-45429: Merge whatsnew about time.sleep (GH-29589)

ambv webhook-mailer at python.org
Wed Nov 17 19:27:04 EST 2021


https://github.com/python/cpython/commit/fc4474e45eecbea8e88095f28c98c5d56438d841
commit: fc4474e45eecbea8e88095f28c98c5d56438d841
branch: main
author: Dong-hee Na <donghee.na at python.org>
committer: ambv <lukasz at langa.pl>
date: 2021-11-18T01:26:59+01:00
summary:

bpo-45429: Merge whatsnew about time.sleep (GH-29589)

Co-authored-by: Łukasz Langa <lukasz at langa.pl>

files:
M Doc/library/time.rst
M Doc/whatsnew/3.11.rst

diff --git a/Doc/library/time.rst b/Doc/library/time.rst
index 0f880910c6ee6..622f66719cee7 100644
--- a/Doc/library/time.rst
+++ b/Doc/library/time.rst
@@ -362,7 +362,10 @@ Functions
    On Windows, if *secs* is zero, the thread relinquishes the remainder of its
    time slice to any other thread that is ready to run. If there are no other
    threads ready to run, the function returns immediately, and the thread
-   continues execution.
+   continues execution.  On Windows 8.1 and newer the implementation uses
+   a `high-resolution timer
+   <https://docs.microsoft.com/en-us/windows-hardware/drivers/kernel/high-resolution-timers>`_
+   which provides resolution of 100 nanoseconds. If *secs* is zero, ``Sleep(0)`` is used.
 
    Unix implementation:
 
@@ -370,9 +373,6 @@ Functions
    * Or use ``nanosleep()`` if available (resolution: 1 nanosecond);
    * Or use ``select()`` (resolution: 1 microsecond).
 
-   On Windows, a waitable timer is used (resolution: 100 nanosecond). If *secs* is
-   zero, ``Sleep(0)`` is used.
-
    .. versionchanged:: 3.11
       On Unix, the ``clock_nanosleep()`` and ``nanosleep()`` functions are now
       used if available. On Windows, a waitable timer is now used.
diff --git a/Doc/whatsnew/3.11.rst b/Doc/whatsnew/3.11.rst
index 0c7c74e7c3242..06a24151c32cc 100644
--- a/Doc/whatsnew/3.11.rst
+++ b/Doc/whatsnew/3.11.rst
@@ -269,6 +269,7 @@ threading
   by system clock changes.
   (Contributed by Victor Stinner in :issue:`41710`.)
 
+
 time
 ----
 
@@ -278,14 +279,13 @@ time
   of 1 microsecond (10\ :sup:`-6` seconds).
   (Contributed by Benjamin Szőke and Victor Stinner in :issue:`21302`.)
 
-* On Windows, :func:`time.sleep` now uses a waitable timer which has a
-  resolution of 100 nanoseconds (10\ :sup:`-7` seconds). Previously, it had
-  a resolution of 1 millisecond (10\ :sup:`-3` seconds).
-  (Contributed by Benjamin Szőke and Victor Stinner in :issue:`21302`.)
+* On Windows 8.1 and newer, :func:`time.sleep` now uses a waitable timer based
+  on `high-resolution timers
+  <https://docs.microsoft.com/en-us/windows-hardware/drivers/kernel/high-resolution-timers>`_
+  which has a resolution of 100 nanoseconds (10\ :sup:`-7` seconds). Previously,
+  it had a resolution of 1 millisecond (10\ :sup:`-3` seconds).
+  (Contributed by Benjamin Szőke, Dong-hee Na, Eryk Sun and Victor Stinner in :issue:`21302` and :issue:`45429`.)
 
-* On Windows, :func:`time.sleep` now uses a waitable timer which supports high-resolution timers.
-  In Python 3.10, the best resolution was 1 ms, from Python 3.11 it's now smaller than 1 ms.
-  (Contributed by Dong-hee Na and Eryk Sun in :issue:`45429`.)
 
 unicodedata
 -----------



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