Public bug reported:
[Impact]
Bug 1800664 introduced checksum offload and TSO support for HiNIC adapters.
While that did improve performance in short iperf runs, longer runs were later
found to show a significant regression in performance:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1800664/comments/3
[Test Case]
iperf -c 192.168.99.1 -P5
[Fix]
Revert the offending patch.
[Regression Risk]
This is reverting a patch, returning the driver to 18.10 GA behavior.
** Affects: linux (Ubuntu)
Importance: Undecided
Assignee: dann frazier (dannf)
Status: In Progress
** Affects: linux (Ubuntu Cosmic)
Importance: Undecided
Assignee: dann frazier (dannf)
Status: In Progress
** Affects: linux (Ubuntu Disco)
Importance: Undecided
Assignee: dann frazier (dannf)
Status: In Progress
** Changed in: linux (Ubuntu)
Status: New => In Progress
** Also affects: linux (Ubuntu Disco)
Importance: Undecided
Assignee: dann frazier (dannf)
Status: In Progress
** Also affects: linux (Ubuntu Cosmic)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Cosmic)
Status: New => In Progress
** Changed in: linux (Ubuntu Cosmic)
Assignee: (unassigned) => dann frazier (dannf)
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https://bugs.launchpad.net/bugs/1805248
Title:
Regression: hinic performance degrades over time
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Cosmic:
In Progress
Status in linux source package in Disco:
In Progress
Bug description:
[Impact]
Bug 1800664 introduced checksum offload and TSO support for HiNIC adapters.
While that did improve performance in short iperf runs, longer runs were later
found to show a significant regression in performance:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1800664/comments/3
[Test Case]
iperf -c 192.168.99.1 -P5
[Fix]
Revert the offending patch.
[Regression Risk]
This is reverting a patch, returning the driver to 18.10 GA behavior.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1805248/+subscriptions
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