New submission from Seth Junot <xset...@gmail.com>:
This blog post describes an issue with Apple's "CLOCK_UPTIME_RAW" where the clock is reset after a system that hibernates: https://rachelbythebay.com/w/2020/10/20/ticktock/ According to Apple's documentation, CLOCK_UPTIME_RAW corresponds to mach_absolute_time(): https://developer.apple.com/documentation/kernel/1462446-mach_absolute_time CPython is using mach_absolute_time() for its time.monotonic() implementation: https://github.com/python/cpython/blob/f660567/Python/pytime.c#L7 time.monotonic() ought to be backed by the more appropriate mach_continuous_time() ("CLOCK_MONOTONIC_RAW"). Note it was introduced in macOS 10.12+: https://developer.apple.com/documentation/kernel/1646199-mach_continuous_time ---------- components: macOS messages: 379204 nosy: ned.deily, ronaldoussoren, sjunot priority: normal severity: normal status: open title: Monotonic time on macOS 10.12+ should use mach_continuous_time() type: behavior versions: Python 3.10 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue42107> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
