[ntp:questions] Speed of ntp convergence

David J Taylor david-taylor at blueyonder.neither-this-part.nor-this-bit.co.uk
Sun Nov 2 06:55:47 UTC 2008


Hal Murray wrote:
>>> Try switching it off, changing the value int he drift file by say
>>> 50PPM and
>>> then switching it on again, and see how long it takes to recover
>>> from that.
>
>> Why would I do that?  The drift values rarely change by more than
>> five, certainly not by 50.  If you are seeing a change of 50, then
>> perhaps that it part of your problem?
>
> A big step like that makes it easy to see how the system responds.
> At least if it's a linear system. :)

Yes, I appreciate that, Hal, but it doesn't emulate the situation here 
very well, which I understood to be slow convergence after a routine 
start.  It sounds as if the OP may have an incorrect drift file - it's 
worth checking that it /is/ being updated.

Cheers,
David 




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