Decrease link probing interval after switchover to better determine the overhead of a toggle #43#48
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zjswhhh merged 4 commits intosonic-net:202012from Mar 23, 2022
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…he overhead of a toggle (sonic-net#43) ### Description of PR Summary: Fixes # (issue) This PR is to get more accurate timestamp of when toggle completes on mux. The method is to decrease link probing interval to 10ms after a switchover is triggered, and write the timestamp of link prober state change to state db ```LINK_PROBE_STATS table```. When switchover is over, revert the probing interval change. If switchover does not complete within 400ms, revert the change as well. ### Type of change - [x] New feature ### Approach #### What is the motivation for this PR? To better determine the overhead of a toggle. #### How did you do it? Decrease link probing interval after switchover is triggered. #### How did you verify/test it? Tested cases below on dual testbed: 1. switchover succeeds, icmp_respnder is on. 2. switchover completes but icmp_responder is off. In both cases, link prober events are posted to state db as expected. Link probing interval is decreased and reverted as expected.
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Description of PR
Original commit & PR in master branch:
c43cf7a Jing Zhang Tue Mar 22 16:22:00 2022 -0700 Decrease link probing interval after switchover to better determine the overhead of a toggle (#43)
Summary:
Fixes # (issue)
This PR is to get more accurate timestamp of when toggle completes on mux.
The method is to decrease link probing interval to 10ms after a switchover is triggered, and write the timestamp of link prober state change to state db
LINK_PROBE_STATS table.When switchover is over, revert the probing interval change. If switchover does not complete within 400ms, revert the change as well.
sign-off: Jing Zhang zhangjing@microsoft.com
Type of change
Approach
What is the motivation for this PR?
To better determine the overhead of a toggle.
How did you do it?
Decrease link probing interval after switchover is triggered.
How did you verify/test it?
Tested cases below on dual testbed:
In both cases, link prober events are posted to state db as expected. Link probing interval is decreased and reverted as expected.
Any platform specific information?
Documentation