[ntp:questions] Offset Average (Normal)?
david at ex.djwhome.demon.invalid
Mon Mar 12 22:39:08 UTC 2012
Alby VA wrote:
> If your offset is between -400 to +600 μs (microseconds), would you
> consider that Good, Bad, or Average?
> If it is less than Good, could something be tweaked to improve it?
> ntp.conf changes? cable changes?
> or I'm just SOL?
For PPS, very bad. Also note that one would expect the distribution to
be symmetrical about zero.
To know what to tweak one needs to know more about what is there.
> assID=0 status=0115 leap_none, sync_atomic, 1 event,
> version="ntpd 4.2.6p5 at 1.2349-o Mon Feb 20 22:00:33 UTC 2012 (1)",
> processor="amd64", system="FreeBSD/9.0-RELEASE", leap=00, stratum=1,
> precision=-19, rootdelay=0.000, rootdisp=1.082, refid=PPS,
> reftime=d308de90.7e20860b Mon, Mar 12 2012 16:44:00.492,
> clock=d308dec4.6a2aacac Mon, Mar 12 2012 16:44:52.414, peer=9406,
> mintc=3, offset=0.081, frequency=-24.987, sys_jitter=6.771,
> clk_jitter=0.003, clk_wander=0.004
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