Nicola Berndt wrote: [] > I just recently tested my ntp-(pps-)machine in a large open hall and > found it to be unable to settle down even after a day! It looks like > the temperature changes in this open hall environment make the machine > jitter with values between -200 and 200 ms regularly and > unpredictable. Whenever I checked it, values were wildly varying > inbetween those.. The same machine was able to at least settle down > after an hour or so in a heated inside environment. I slowly come to > believe that ntp simply lacks switches for adjusting how drastically > the slewing is done in case the environmental temperature is varying > drastically as well. [] > Best regards, > ../nico berndt
Nico, >From what you report, I would suggest that something is very broken. I have a PC (FreeBSD, NTP, PPS GPS source) running in a domestic environment where, at the moment the central heating comes on at 0600. Here is the reported offset: http://www.satsignal.eu/mrtg/pixie_ntp.html Switching the room heating on causes 10usec offset, not 200msec. The other Windows PCs synced from that PC are generally within 10msec: http://www.satsignal.eu/mrtg/daily_ntp.html Cheers, David _______________________________________________ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
