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- To: chrony-users@xxxxxxxxxxxxxxxxxxxx
- Subject: Re: [chrony-users] Chrony not taking SOCKET data from Application
- From: Miroslav Lichvar <mlichvar@xxxxxxxxxx>
- Date: Wed, 1 Feb 2023 10:10:39 +0100
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On Tue, Jan 31, 2023 at 10:42:39PM +0530, sarveshwar k wrote:
> Should I have to add more directives to the PPS reference clock or GPS
> refclock to make Last Rx value be always 1second?
If you enable the refclocks log, do you see all PPS and SOCK samples,
or are some missing?
> Can we reduce the offset to less than 100ns with some configuration in
> chrony?
Probably not. Is the CPU running at a constant frequency? Did you try
disabling all power saving features? You could also try higher PPS
rate (if the GPS can be configured for that) and switch to the
pps-gpio-poll kernel module to avoid the interrupt latency/jitter.
--
Miroslav Lichvar
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