New submission from nooB <nsharish....@gmail.com>:
Documentation for time.perf_counter says "does include time elapsed during sleep". https://docs.python.org/3.8/library/time.html#time.perf_counter But it does not work as expected in Mac OS. I learnt that perf_counter uses the underlying c function: "mach_absolute_time". ------------------------- import time time.get_clock_info('perf_counter') namespace(adjustable=False, implementation='mach_absolute_time()', monotonic=True, resolution=1e-09) ------------------------- The documentation for "mach_absolute_time" clearly states that "this clock does not increment while the system is asleep" https://developer.apple.com/documentation/kernel/1462446-mach_absolute_time FWIW, Mac kernel does offer another function which returns monotonic ticks "including while the system is asleep" https://developer.apple.com/documentation/kernel/1646199-mach_continuous_time But it seems to be available only on Mac 10.12+. ---------- components: macOS messages: 373690 nosy: ned.deily, nooB, ronaldoussoren priority: normal severity: normal status: open type: behavior versions: Python 3.6, Python 3.7, Python 3.8 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue41303> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
