On 2010-Feb-22 03:41:05 -0800, Jeremy Chadwick <free...@jdc.parodius.com> wrote: >ntpd under normal operation (not +/- 500ppm) "figure out" on its own the >average amount of drift, which is what ntpd.drift is for, correct?
Yes. It takes a long time for ntpd to characterise the local system clock. Once it does so, it stores the calculated drift in ntp.drift and updates it every hour or so. This means that when ntpd is restarted, it can immediately set its PLL to a reasonably close value, rather than starting from scratch. -- Peter Jeremy
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