Experimental Physics and
Industrial Control System

Hey All,

 

Trying to understand how the timestamp is being placed in a record by looking at the ClockTimeReport and the generalTimeReport.  I also have been exploring using our NTP server with the IOC by setting the env variable EPICS_TS_NTP_INET to the NTP IP.  I may be understanding the reports incorrectly but wanted to make sure that without the NTP server at least the IOCs are syncing with the OS (my iocs are running from within a VM).  I do have the VM setup to sync with the OS.

 

How I understand it if no NTP server is around the IOC will grab its timestamp based off the IOC Boot server (OS Clock?).  But the ClockTimeReport is showing

 

epics> ClockTime_Report            

Program started at 2021-01-04 12:22:24.937270

OS Clock synchronization thread not running.

 

But the generalTimeReport seems to match my OS clock

 

epics> generalTimeReport

Backwards time errors prevented 0 times.

 

Current Time Providers:

    "OS Clock", priority = 999

                Current Time is 2021-01-04 12:24:51.784595.

 

Event Time Providers:

                No Providers registered.