ma...@ntp.isc.org (Danny Mayer) writes: >Dave Hart wrote: >> Take 2: >> >> On Jan 28, 11:52 pm, Terje Mathisen <"terje.mathisen at tmsw.no"> >> wrote: >>> I've installed your version, and included -M in my startup parameters: >>> >>> I get Event Log (Application) messages about stuff like: >>> >>> System time quantum 1.000 msec, min. slew 6.410 ppm/s >> >> Notice the observed quantum 1 msec is less than the threshold I >> mentioned, so interpolation is disabled. You'll also notice a >> precision = 1000.0 usec log line, where with interpolation that number >> is much less than 1000. Your system should keep better time than it >> did with stock ntpd. If you can avoid any program that changes >> multimedia timers, you would probably get more precise ntpd >> timekeeping without -M, allowing interpolation to be used, however any >> MM timer use and the interpolation will perform very badly. >> >>> Clock interrupt period 15.600 msec (startup slew 0.1 usec/period) >>> Performance counter frequency 14.318 MHz >>> MM timer resolution: 1..1000000 msec, set to 1 msec >>> ntpd 4.2....@dlh-qpc-o Jan 28 6:47:59.16 (UTC-08:00) 2009 (51) >>> >>> which seems to me to indicate that your code is indeed running, but I >>> don't get any 'filtered... QPC' messages at all? >> >> Yeah, that's part of the interpolation. If you want to see them, >> leave off -M (and avoid Flash, Quicktime, etc). >>
>If you are going to do this you MUST take account of Flash, Quicktime >and other multimedia otherwise it's not an acceptable solution. >Stability and accuracy of the clock are extremely important otherwise we >wouldn't be using ntp. If they are important, why are you using windows? _______________________________________________ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
