[ntp:questions] Loopstats updated less frequently than expected

Miroslav Lichvar mlichvar at redhat.com
Sat May 23 13:17:20 UTC 2009


On Sat, May 23, 2009 at 10:59:54AM +0000, David J Taylor wrote:
> .. and the following as the most recent loopstats:
> 
> 54974 37901.029 -0.000209922 13.840 0.000108471 0.007233 6
> 54974 38229.033 0.000346890 13.846 0.000221473 0.007179 6
> 54974 38754.041 -0.000217131 13.840 0.000287548 0.007132 6
> 54974 38954.047 -0.000091306 13.839 0.000272631 0.006682 6
> 
> I note that the times between these four entries are:
> 
> 328s
> 525s
> 200s
> 
> As I have maxpoll set to 6, I would have expected entries no more than 64s 
> apart.  What am I failing to understand here?  The poll values reported in 
> ntpq -p are 64, 64 and 1024 - as expected.

That's clock filter skipping samples, it may skip up to 7 consecutive
samples based on their dispersion. All samples are recorded in
peerstats.

-- 
Miroslav Lichvar



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