[LinuxPPS] interpreting the allan deviation graph of the ntp loopstats-file

Folkert van Heusden folkert at vanheusden.com
Tue Jan 6 17:51:58 CET 2009


> > But: now what? What do these graphs tell me?
> 
> http://en.wikipedia.org/wiki/Allan_variance

Yes, they measure the stability of a clock. But how? What does that line
in my graphs tell me? Bad clock? Good clock? Degrading clock?


Folkert van Heusden

-- 
MultiTail er et flexible tool for å kontrolere Logfiles og commandoer.
Med filtrer, farger, sammenføringer, forskeliger ansikter etc.
http://www.vanheusden.com/multitail/
----------------------------------------------------------------------
Phone: +31-6-41278122, PGP-key: 1F28D8AE, www.vanheusden.com



More information about the LinuxPPS mailing list