On Thu, Mar 15, 2012 at 1:10 PM, Paul Moore <p.f.mo...@gmail.com> wrote: >> Monotonic clocks are not necessarily hardware based, and may be adjusted >> forward by NTP. > > I appreciate that. But I'm still unclear how you would tell that had > happened as part of the implementation. One call to the OS returns > 12345. The next returns 13345. Is that because 100 ticks have passed, > or because the clock "leapt forward"? With no point of reference, how > can you tell?
The point (AIUI) is that you *can't* identify such adjustments (in the absence of some sort of log of NTP updates), so we should provide a mechanism that is guaranteed not to be affected by them. Cheers, Nadeem _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
