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PEP 418: Remove the unverified info about mach_timebase_info()

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Victor Stinner 2012-04-28 03:21:26 +02:00
parent 04fc727e6f
commit 9c952d97bf
1 changed files with 3 additions and 5 deletions
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pep-0418.txt
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@ -968,11 +968,9 @@ Mac OS X provides a monotonic clock: mach_absolute_time(). It is
based on absolute elapsed time since system boot. It is not based on absolute elapsed time since system boot. It is not
adjusted and cannot be set. adjusted and cannot be set.
mach_timebase_info() gives a fraction to convert the clock value to a mach_timebase_info() gives a fraction to convert the clock value to a number of
number of nanoseconds. According to the documentation (`Technical Q&A nanoseconds. See also the `Technical Q&A QA1398
QA1398 <https://developer.apple.com/library/mac/#qa/qa1398/>`_), <https://developer.apple.com/library/mac/#qa/qa1398/>`_.
mach_timebase_info() is always equal to one and never fails, even if
the function may fail according to its prototype.
mach_absolute_time() stops during a sleep on a PowerPC CPU, but not on mach_absolute_time() stops during a sleep on a PowerPC CPU, but not on
an Intel CPU: `Different behaviour of mach_absolute_time() on i386/ppc an Intel CPU: `Different behaviour of mach_absolute_time() on i386/ppc