[ntp:questions] Very large offset and jitter values after reboot

David J Taylor david-taylor at blueyonder.neither-this-bit.nor-this-part.co.uk
Mon Aug 25 10:55:35 UTC 2008


Nicola Berndt wrote:
> Richard B. Gilbert schrieb:
[]
>> 600 ms seems to be a large error for a warm start.  Are you using
>> "-g" to start ntpd?  Forgive me if this has already been asked and
>> answered.
>
> Yes, I do. Strange, right?

Is there any chance that the PPS you are using is 400ms or 600ms long, and 
you are actually syncing off the wrong edge of the pulse - and not the 
edge which co-incides with the UTC second?

Cheers,
David 





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