Hello David, On Sunday, February 10, 2008 at 10:55:29 +0000, David Woolley wrote:
> However, if it wasn't stepped, because it was already within 128ms, it > will be slewing at maximum rate. Allowing 100ppm for motherboard > tolerances, that means that it can take up to a further 320 seconds to > reach the low milliseconds. Only 256 seconds maximum, because the kind of slew (singleshot) initiated by ntpd -q comes *above* the usual frequency correction already annihiliating the motherboard error. > I don't believe it would be safe to start ntpd in normal mode within > that period. Indeed: the daemon then behaves strangely, not sane at all. Last year I published here an awk script calling ntpd -gq and then sleeping until an eventual slew is finished. After that, normal mode ntpd can be started safely. And of course the daemon really appreciates to startup with a near-zero initial phase offset. Serge. -- Serge point Bets arobase laposte point net _______________________________________________ questions mailing list [email protected] https://lists.ntp.org/mailman/listinfo/questions
