Re: [Linuxptp-users] clockcheck - need to filter large spurious phase jumps?

[Richard C. <ric...@gm...>]

On Tue, Nov 12, 2013 at 02:28:38PM -0500, Rich Schmidt wrote:
> We use 16s update interval on our NTP servers that are synced to PTP time
> code using a Spectracom PCIe PTP card, and our system clock jitter is
> around 700 nanoseconds! Frequency changes due to temperature effects are
> not rapid in our environment.  If you run adjtime too frequently you may
> end up chasing your tail.

That seems like a surprisingly good figure. Do you have a way of
verifying it, or is this simply what their software tells you?

Also, does their servo converge rather slowly, like ntp?

Thanks,
Richard