[action] [PR:3036] [Mellanox] PFC watchdog long term solution to reduce false alarm (#3036)#3213
Merged
mssonicbld merged 1 commit intosonic-net:202311from Jul 3, 2024
Merged
Conversation
…ic-net#3036) What I did Adjust PFC watchdog detection algorithm to reduce false alarms. In the old PFC watchdog detection algorithm, the PFC watchdog can be triggered if either of the following conditions is satisfied in a detection interval: There are packets accumulated in the queue && there is no packet sent out of the queue && there are PFC frames received in the queue There is no packet accumulated in the queue and there are PFC frames received and blocking more than 80% of the detection interval. The new PFC watchdog detection algorithm merges two conditions into one: The PFC watchdog is triggered only if: There are packets accumulated in the queue && there is no packet sent out of the queue && there are PFC frames received and blocking more than 99% of the detection interval.
Collaborator
Author
|
Original PR: #3036 |
Collaborator
Author
|
/azp run Azure.sonic-swss |
|
Azure Pipelines successfully started running 1 pipeline(s). |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
What I did
Adjust PFC watchdog detection algorithm to reduce false alarms.
In the old PFC watchdog detection algorithm, the PFC watchdog can be triggered if either of the following conditions is satisfied in a detection interval:
There are packets accumulated in the queue && there is no packet sent out of the queue && there are PFC frames received in the queue
There is no packet accumulated in the queue and there are PFC frames received and blocking more than 80% of the detection interval.
The new PFC watchdog detection algorithm merges two conditions into one:
The PFC watchdog is triggered only if:
There are packets accumulated in the queue && there is no packet sent out of the queue && there are PFC frames received and blocking more than 99% of the detection interval.