On Jan 10, 2012, at 9:12 AM, Marco Marongiu wrote: > I understand from "the NTP timescale and leap seconds" by Prof.Mills > that modern ntpd doesn't step back the clock but either "freezes" time > during the leap second, or it slightly increments it at each read until > the "real time" catches up. > > Did I get it correctly?
I think so, yes. > If yes, then I would like to know: > > - how can I tell if the operating system will freeze/slowdown, or step > the clock? Ask your operating system vendor, or look at the source code: http://www.freebsd.org/cgi/cvsweb.cgi/~checkout~/src/sys/kern/kern_tc.c > - how can I simulate a leap second, and see how the system reacts? Change the system time to a few minutes before any particular leap second that your OS knows about (CF leapseconds file, if it has one) and see. Regards, -- -Chuck _______________________________________________ questions mailing list [email protected] http://lists.ntp.org/listinfo/questions
