[ntp:questions] Performance?

dhavey dhavey at gmail.com
Mon Dec 22 18:36:33 UTC 2008


This is the ntpq -p output from 2 machines connected to Garmin GPS's.
The machines ip's of the 2 machines are 192.168.0.28 and .29.  They
are about a millisecond apart!  That's no better than the server
without the GPS.  What did I do to deserve such lousy performance.?

server 127.127.20.0 prefer minpoll 4
fudge 127.127.20.0 refid GPS flag3 1 flag2 0 time1 0.0
 and the machines are peered together.


     remote           refid      st t when poll reach   delay
offset  jitter
==============================================================================
*192.168.0.2     69.25.96.13      2 u   83 1024  377    0.898
-0.201   0.456
 192.168.0.26    192.168.0.2      3 u  171 1024  376    1.588
-1.921   0.416
 192.168.0.27    192.168.0.2      3 u  204 1024  376    1.206
2.312   0.008
 192.168.0.29    192.168.0.28     4 u  323  256  166    0.110
0.908   0.299
 GPS_NMEA(0)     .GPS.            0 l    -   16    0    0.000
0.000   0.001

     remote           refid      st t when poll reach   delay
offset  jitter
==============================================================================
+192.168.0.26    192.168.0.2      3 u   67  512  177    0.100
-2.753   0.374
+192.168.0.27    192.168.0.2      3 u   67  512  377    0.055
2.018   0.314
*192.168.0.28    192.168.0.2      3 u  120  512  137    0.020
-0.953   0.337
 GPS_NMEA(0)     .GPS.            0 l    -   16    0    0.000
0.000   0.001




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