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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 --------------------------------------------------------------------- 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 : --------------------------------------------------------------------- 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 >