> > Besides I got them to run NTP and they're too jittery for my taste. > > How good/bad were they? > What were you using for a time source? Does it have PPS support?
Here's ntpq -c pv for one of my RPIs after 25 days of uptime: associd=0 status=0615 leap_none, sync_ntp, 1 event, clock_sync, version="ntpd 4.2.6p5@1.2349-o Fri May 18 20:30:57 UTC 2012 (1)", processor="armv6l", system="Linux/3.8.10+", leap=00, stratum=3, precision=-20, rootdelay=25.184, rootdisp=73.646, refid=83.98.201.134, reftime=d54cac1f.18aa9126 Sun, May 26 2013 17:43:27.096, clock=d54cb273.b755933f Sun, May 26 2013 18:10:27.716, peer=34195, tc=10, mintc=3, offset=0.182, frequency=-47.006, sys_jitter=0.377, clk_jitter=0.558, clk_wander=0.051 Hmmm found out that it syncs to random hosts on the internet. Ok an other one which syncs against an other pc with PPS (and a few others): folkert@weerpi ~ $ ntpq -c rv associd=0 status=0615 leap_none, sync_ntp, 1 event, clock_sync, version="ntpd 4.2.6p5@1.2349-o Fri May 18 20:30:57 UTC 2012 (1)", processor="armv6l", system="Linux/3.8.10+", leap=00, stratum=2, precision=-20, rootdelay=0.807, rootdisp=7.669, refid=192.168.64.100, reftime=d54cb1e1.9d6e8f07 Sun, May 26 2013 18:08:01.614, clock=d54cb2e4.7d1cdae3 Sun, May 26 2013 18:12:20.488, peer=41936, tc=9, mintc=3, offset=0.220, frequency=-31.405, sys_jitter=0.647, clk_jitter=0.074, clk_wander=0.003 folkert@weerpi ~ $ uptime 18:12:25 up 15 days, 3:48, 1 user, load average: 0.12, 0.17, 0.15 Folkert van Heusden -- Multitail est un outil permettant la visualisation de fichiers de journalisation et/ou le suivi de l'exécution de commandes. Filtrage, mise en couleur de mot-clé, fusions, visualisation de différences (diff-view), etc. http://www.vanheusden.com/multitail/ ---------------------------------------------------------------------- Phone: +31-6-41278122, PGP-key: 1F28D8AE, www.vanheusden.com _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.