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200403030: negetavie latencies

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  • Subject: 200403030: negetavie latencies
  • Date: Wed, 3 Mar 2004 16:08:53 -0700 (MST)
Hi Patrick,

The LDM does resolve time to the millisecond, however, the pqbinstats
utility and rtstats, resolve to the nearest second. So you may see a +1
second, and then a -1 second..both are quite fine. Once we start seeing
latencies that exceed the "rounding" issue of the 1 second..such as the
-64 seconds from twister.millersville..then we know we have a clock issue.

As long as they are 'bumps' and not a downward sloping trend, I suspect
things are AOK.

Jeff
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Jeff Weber                                    address@hidden        :
Unidata Program Center                        PH:303-497-8676        :
University Corp for Atmospheric Research      3300 Mitchell Ln       :
http://www.unidata.ucar.edu/staff/jweber      Boulder,Co 80307-3000  :
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On Wed, 3 Mar 2004, Patrick L. Francis wrote:

>
> fyi little 'bumps' of negative latency still show up on all
> charts after readjusting ntp for 15min intervals... time
> matches with my other servers
>
> http://my.unidata.ucar.edu/cgi-bin/rtstats/iddstats_nc?HDS+weather.bgsu.edu
>