https://lists.ubuntu.com/archives/kernel-team/2023-July/141045.html
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-azure in Ubuntu. https://bugs.launchpad.net/bugs/2027615 Title: Azure: MANA: Fix doorbell access for receives Status in linux-azure package in Ubuntu: New Status in linux-azure source package in Jammy: In Progress Status in linux-azure source package in Lunar: In Progress Bug description: SRU Justification [Impact] It's inefficient to ring the doorbell page every time a WQE is posted to the received queue. Excessive MMIO writes result in CPU spending more time waiting on LOCK instructions (atomic operations), resulting in poor scaling performance. [Test Plan] MSFT tested. [Regression Potential] The MANA receive queue could stop. [Other Info] SF: #00363437 These 2 patches have been submitted for upstream inclusion. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/2027615/+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
