[Python-checkins] peps: PEP 418: Add link to Monoclock library and an old article on Windows clocks
victor.stinner
python-checkins at python.org
Thu Apr 5 00:42:56 CEST 2012
http://hg.python.org/peps/rev/d0033fc0844f
changeset: 4202:d0033fc0844f
user: Victor Stinner <victor.stinner at gmail.com>
date: Thu Apr 05 00:38:51 2012 +0200
summary:
PEP 418: Add link to Monoclock library and an old article on Windows clocks
Mention also another issue of QueryPerformanceCounter()
files:
pep-0418.txt | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/pep-0418.txt b/pep-0418.txt
--- a/pep-0418.txt
+++ b/pep-0418.txt
@@ -411,6 +411,9 @@
each processor. The bug was fixed in Windows XP SP2.
* Issues with processor with variable frequency: the frequency is changed
depending on the workload to reduce memory consumption.
+* Chromium don't use QueryPerformanceCounter() on Athlon X2 CPUs (model 15)
+ because "QueryPerformanceCounter is unreliable" (see base/time_win.cc in
+ Chromium source code)
.. _KB896256: http://support.microsoft.com/?id=896256
.. _KB274323: http://support.microsoft.com/?id=274323
@@ -905,6 +908,9 @@
* `python-monotonic-time
<http://code.google.com/p/python-monotonic-time/>`_ (`github
<https://github.com/gavinbeatty/python-monotonic-time>`_)
+* `Monoclock.nano_count()
+ <https://github.com/ludios/Monoclock>`_ uses clock_gettime(CLOCK_MONOTONIC)
+ and returns a number of nanoseconds
* `monotonic_clock <https://github.com/ThomasHabets/monotonic_clock>`_
* `Perl: Time::HiRes <http://perldoc.perl.org/Time/HiRes.html>`_
exposes clock_gettime(CLOCK_MONOTONIC)
@@ -961,6 +967,8 @@
<http://www.ibm.com/developerworks/library/i-seconds/>`_: How the
IBM High Resolution Time Stamp Facility accurately measures itty
bits of time
+* `Win32 Performance Measurement Options
+ <http://drdobbs.com/windows/184416651>`_ by Matthew Wilson, May 01, 2003
Copyright
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