On 2013-12-02 13:10, Harlan Stenn wrote:
Brian Inglis writes:
When I ran current stable under Win 7 with only network servers I
found I had to drop minpoll to 4 (default is 6) so iburst would
quickly get a good offset and pull drift down from initial
out-to-lunch estimate compared to drift file contents.
This is strange - iburst sends its polls at 2 second intervals, and with
a good drift file will sync the clock in about 11 seconds' time.
Dropping minpoll from 6 to 4 should only help if the initial conditions
are "off" enough that the initial iburst volley didn't match up with
things like the stored drift value.
Don't seem to have old network synched logs but with Win 7 current stable and
ref clock,
I get the drift file load, then the out to lunch estimate 15 minutes later,
followed by clock_sync:
14 Aug 12:50:35 ntpd.exe[2708]: ntpd [email protected] Jul 30 11:55:08
(UTC+02:00) 2012 (2)
14 Aug 12:50:35 ntpd.exe[2708]: Raised to realtime priority class
14 Aug 12:50:39 ntpd.exe[2708]: 0.0.0.0 c012 02 freq_set ntpd 0.800 PPM
14 Aug 12:50:39 ntpd.exe[2708]: Using user-mode PPS timestamp for GPS_NMEA(4)
14 Aug 13:05:53 ntpd.exe[2708]: 0.0.0.0 c412 02 freq_set ntpd -1.183 PPM
14 Aug 13:05:53 ntpd.exe[2708]: 0.0.0.0 c415 05 clock_sync
18 Sep 21:10:29 ntpd.exe[2360]: Raised to realtime priority class
18 Sep 21:10:33 ntpd.exe[2360]: 0.0.0.0 c012 02 freq_set ntpd 0.850 PPM
18 Sep 21:10:34 ntpd.exe[2360]: Using user-mode PPS timestamp for GPS_NMEA(4)
18 Sep 21:26:02 ntpd.exe[2360]: 0.0.0.0 c412 02 freq_set ntpd 5.929 PPM
18 Sep 21:26:02 ntpd.exe[2360]: 0.0.0.0 c415 05 clock_sync
3 Oct 18:37:01 ntpd.exe[3228]: Raised to realtime priority class
3 Oct 18:37:05 ntpd.exe[3228]: Using user-mode PPS timestamp for GPS_NMEA(4)
3 Oct 18:37:05 ntpd.exe[3228]: 0.0.0.0 c012 02 freq_set ntpd 0.850 PPM
3 Oct 18:52:18 ntpd.exe[3228]: 0.0.0.0 c412 02 freq_set ntpd 1.448 PPM
3 Oct 18:52:18 ntpd.exe[3228]: 0.0.0.0 c415 05 clock_sync
12 Oct 17:03:41 ntpd.exe[2968]: Raised to realtime priority class
12 Oct 17:03:45 ntpd.exe[2968]: 0.0.0.0 c012 02 freq_set ntpd 0.850 PPM
12 Oct 17:03:46 ntpd.exe[2968]: Using user-mode PPS timestamp for GPS_NMEA(4)
12 Oct 17:18:56 ntpd.exe[2968]: 0.0.0.0 c412 02 freq_set ntpd 6.215 PPM
12 Oct 17:18:56 ntpd.exe[2968]: 0.0.0.0 c415 05 clock_sync
14 Nov 16:56:15 ntpd.exe[2640]: Raised to realtime priority class
14 Nov 16:56:18 ntpd.exe[2640]: 0.0.0.0 c012 02 freq_set ntpd 0.875 PPM
14 Nov 16:56:20 ntpd.exe[2640]: Using user-mode PPS timestamp for GPS_NMEA(4)
14 Nov 17:11:40 ntpd.exe[2640]: 0.0.0.0 c412 02 freq_set ntpd -1.155 PPM
14 Nov 17:11:40 ntpd.exe[2640]: 0.0.0.0 c415 05 clock_sync
--
Take care. Thanks, Brian Inglis
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