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-- 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/1819689 Title: [linux-azure] Commit To Improve NVMe Performance Status in linux-azure package in Ubuntu: Fix Released Status in linux-azure source package in Xenial: Fix Released Status in linux-azure source package in Cosmic: Fix Released Bug description: In bug 1818138, the config option CONFIG_NO_HZ_FULL was requested to be enabled in the linux-azure kernels(currently 4.15 and 4.18) in order to increase NVME disks performance. To achieve the peak IOPs we are seeing in testing, the following commit is also needed: 7ac257b862f2c (“blk-mq: remove the request_list usage”) This commit cleans up unused code in block-mq (mq uses pre-allocated tags to allocate request, not request_list as it's used only in legacy queue). The commit saves a bunch of rcu locks on I/O queuing path, which increases the achievable IOPs seen in testing. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/1819689/+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
