Ronald Oussoren <[email protected]> added the comment:
mach_absolute_time returns time in ticks, there's a separate API that returns
the resolution of this clock (which is already used).
The manpage explicitly says that mach_absolute_time and CLOCK_UPTIME_RAW are
the same clock:
CLOCK_UPTIME_RAW clock that increments monotonically, in the same manner
as CLOCK_MONOTONIC_RAW, but that does
not increment while the system is asleep. The returned
value is identical to the result of
mach_absolute_time() after the appropriate
mach_timebase conversion is applied.
Switching from mach_absolute_time to CLOCK_UPTIME_RAW would therefore bring us
no improvements, and would complicate the code base because clock_gettime is
only available starting from macOS 10.12.
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<https://bugs.python.org/issue41303>
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