On Fri, Nov 29, 2013 at 09:46:32AM -0800, Bill Unruh wrote:
> On Fri, 29 Nov 2013, Bill Unruh wrote:
> By the way, does the kernel PPS do median filtering before passing on the
> times to chrony? (Ie, taking the median of say the past 16 inputs and throwing
> away the 6 worst outliers and then
On 29/11/2013 18:21, Miroslav Lichvar wrote:
Anyway, it should not be switching sources unless the deviation of the
selected source exceeds the variance of the alternative (or unless the source
has disappeared for a suitable number of poll intervals, probably related to
how long one would expect
On Thu, Nov 28, 2013 at 11:11:18AM -0800, Bill Unruh wrote:
> On Thu, 28 Nov 2013, Miroslav Lichvar wrote:
> >That looks similar to what I see with with a Garmin 18x LVC. This is a
> >capture 30 hours long I did some time ago (the NMEA source's offset
> >value was set to 0.5):
> >
>
On Fri, 29 Nov 2013, Bill Unruh wrote:
On Fri, 29 Nov 2013, Miroslav Lichvar wrote:
> The problem in his case is that the PPS signal is occasionally
> (but far too often) off by almost .3 sec. That is rediculous. And it is
> only
> when the gps-nmea and the PPS are the only sources.
