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) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. 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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp