Re: [chrony-users] Chrony not taking SOCKET data from Application

[Emmanuel Fusté <manu.fuste@xxxxxxxxx>]

Le 28/06/2023 à 19:19, Bill Unruh a écrit :
> Why would you be using makestep if the difference were more than 
> 100ns. That
> both seems extreme and totally subverts the action of chrony. Chrony is
> designed to correct the system clock to the best estimate of the true 
> time and
> rate. Makestep ruins that, especially the rate estimate. Nothing can 
> control
> the clock to 100ns unless you have very special hardware. 100ns is 
> less than
> 100 ft of cable, and needs very special impedance matching to attain.

The main problem is not the cable, but the system himself : bus latency, 
irq latency etc...
You're right : very special hardware is needed to reach less than 100ns 
measurement induced error/system clock tracking.

Emmanuel.

--
To unsubscribe email chrony-users-request@xxxxxxxxxxxxxxxxxxxx 
with "unsubscribe" in the subject.
For help email chrony-users-request@xxxxxxxxxxxxxxxxxxxx 
with "help" in the subject.
Trouble?  Email listmaster@xxxxxxxxxxxxxxxxxxxx.