[ntp:questions] Re: Drift handling....
sandler at ujf.cas.cz
Thu Jan 5 01:25:49 UTC 2006
> So, the longer your measurements last, the more accurate your
> determination of the average drift will be. Many ntp-servers run for a
> long time, so it is possible to have a very accurate average.
No doubt, the statistical analysis of the logs can provide very accurate
drift value even with dependency on temperature, crystal age and so on.
> c) don't adjust your drift at all, but assume that a 'glitch' caused the
> additional offset; correct for the additional offset, and continue with
> the same drift value (or adjust it a very little bit);
I think, the first principle about a synchronized ntpd is don't put in the
hands of the clock. In consequence, some "intentional" and small as possible
drift change is the only instrument how to repair the phase.
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