[ntp:questions] Linux NTP Kernel unsync flag remains long after NTP&Kernel have PPL sync

David Woolley david at ex.djwhome.demon.co.uk.invalid
Thu Aug 28 22:26:07 UTC 2008


Darryl Miles wrote:

> Now how do I tell the difference between an offset being reported as 
> 0.0000 due to no sync and an offset being reported as 0.0000 due to a 
> perfect sync ?
> 
Perfect sync might be associated with a gaussian distribution of offsets 
centred around zero, although a systematic error could also produce the 
same results.  Every offset being zero indicates there is something 
broken - it is too perfect.  (Note, the statistics of offsets might not 
be gaussian.)




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