What is the magnitude of the delta that you observe? What does "show clock 
verbose" say about the state of clock-rate convergence? Is a deus ex machina 
(e.g. NTP) involved?



-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Prashant Upadhyaya
Sent: Sunday, June 14, 2020 10:32 AM
To: [email protected]
Subject: [vpp-dev] Regarding vlib_time_now



Hi,



I am using VPP 19.08

In my worker threads, I am observing that when I am making successive calls to 
vlib_time_now in a polling node, sometimes the value of the time reduces.

Is this expected to happen ? (presumably because of the implementation which 
tries to align the times in workers ?) I have an implementation which is 
extremely sensitive to time at microsecond level and depends on the the 
vlib_time_now only increasing monotonically across calls individually in the 
workers (or remain the same but never decrease) on a per worker basis even if 
the times within the workers are not synchronized.



Regards

-Prashant
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