Re: [chrony-users] Chrony Accuracy

[Bill Unruh <unruh@xxxxxxxxxxxxxx>]

That depends on a whole bunch of things-- the key is your network connection
and the accuracy of the clocks on the other end. For a local PPS connection
(eg to a pps-GPS receiver) the accuracy is in the microsecond range (limited
mainly by the interrupt processing latency and variability of your computer.)
With a 300 bd connection to a server on the moon, the accuracy is liable to be
much worse. Typically to a server on the local net, I get accuracies of 10s of
microseconds. To remote servers, 100s of usec. etc.

William G. Unruh   |  Canadian Institute for|     Tel: +1(604)822-3273
Physics&Astronomy  |     Advanced Research  |     Fax: +1(604)822-5324
UBC, Vancouver,BC  |   Program in Cosmology |     unruh@xxxxxxxxxxxxxx
Canada V6T 1Z1     |      and Gravity       |  www.theory.physics.ubc.ca/

On Tue, 12 Aug 2014, Hosam Hittini wrote:

> Hi,
> I was wondering how accurate Chrony is, in terms of seconds
> I didn’t find that on the website
> Thanks in advance
>
> Regards,
> Eng. Hosam Hittini