Heiko Gerstung wrote: > local NTP servers. On our time server appliances we use minpoll 4 > maxpoll 4 for talking to the integrated refclock (GPS, MSF, DCF77 or > IRIG) and this dramatically improves the reaction times of ntpd when it
Dave Mills, you again need to note the "market" perception that ntpd has poor transient responses. > comes to things like initial synchronization, reception outtages and so > on. Although the parse driver (which we use for all our refclocks) As I understand it, maxpoll has rather limited impact. The most it may do is speed up the detection of a phase hit. As I understand it setting a low maxpoll simply causes oversampling of the data without actually limiting the minimum filter bandwidth. I suspect that is why the subsequent discussion only mentions minpoll. > > To me there is no sense in only getting one sample in 64 seconds when > your expensive and highly accurate hardware reference clock offers one > very good sample every second. Most highly accurate reference clocks do not produce high accuracy on their NMEA output, but rather on their PPS one. ntpd only requires the NMEA input to be good to a second, in that case. > _______________________________________________ questions mailing list [email protected] https://lists.ntp.org/mailman/listinfo/questions
