On 2013-05-14, David Woolley <[email protected]> wrote: > Richard B. Gilbert wrote: > >> >> NTPD is NOT designed for fast convergence. From start up to get the >> minutes correct, NTPD will need about thirty minutes! To get the best >> time you are going to get, you will need to wait for about ten hours! >> > Convergence to within 128ms should take a lot less than that. With > iburst, I believe it should be less than one minute.
Since ntpd steps ( changes the rate by an infinite slope) if the time is out by 128 ms, yes, convergence IS faster than that. ( however it has to make sure that the clock really is out by that much and that takes a few cycles of clock querrying). For a ms accuracy your could expect a couple of hours. for 10 microsecond, about 10 hr. > >> >> _______________________________________________ questions mailing list [email protected] http://lists.ntp.org/listinfo/questions
