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

Co-authored-by: Łukasz Langa <lukasz@langa.pl>
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Dong-hee Na 2021-11-18 09:26:59 +09:00 committed by GitHub
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2 changed files with 11 additions and 11 deletions
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8
Doc/library/time.rst
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@ -362,7 +362,10 @@ Functions
On Windows, if *secs* is zero, the thread relinquishes the remainder of its 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 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 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: Unix implementation:
@ -370,9 +373,6 @@ Functions
* Or use ``nanosleep()`` if available (resolution: 1 nanosecond); * Or use ``nanosleep()`` if available (resolution: 1 nanosecond);
* Or use ``select()`` (resolution: 1 microsecond). * 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 .. versionchanged:: 3.11
On Unix, the ``clock_nanosleep()`` and ``nanosleep()`` functions are now On Unix, the ``clock_nanosleep()`` and ``nanosleep()`` functions are now
used if available. On Windows, a waitable timer is now used. used if available. On Windows, a waitable timer is now used.

14
Doc/whatsnew/3.11.rst
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@ -269,6 +269,7 @@ threading
by system clock changes. by system clock changes.
(Contributed by Victor Stinner in :issue:`41710`.) (Contributed by Victor Stinner in :issue:`41710`.)
time time
---- ----
@ -278,14 +279,13 @@ time
of 1 microsecond (10\ :sup:`-6` seconds). of 1 microsecond (10\ :sup:`-6` seconds).
(Contributed by Benjamin Szőke and Victor Stinner in :issue:`21302`.) (Contributed by Benjamin Szőke and Victor Stinner in :issue:`21302`.)
* On Windows, :func:`time.sleep` now uses a waitable timer which has a * On Windows 8.1 and newer, :func:`time.sleep` now uses a waitable timer based
resolution of 100 nanoseconds (10\ :sup:`-7` seconds). Previously, it had on `high-resolution timers
a resolution of 1 millisecond (10\ :sup:`-3` seconds). <https://docs.microsoft.com/en-us/windows-hardware/drivers/kernel/high-resolution-timers>`_
(Contributed by Benjamin Szőke and Victor Stinner in :issue:`21302`.) 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 unicodedata
----------- -----------