One thing we are looking at is potential issues with KSM and KVM. Can you try disabling KSM and see if the results remain the same: - edit /etc/default/qemu: - change KSM_ENABLED to 0 - sudo service qemu restart I would recommend doing this when your VMs are shutdown; and ensuring nothing else in your system is using KSM.
Thanks, -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1344430 Title: 10-15% iowait on kvm instances on Ubuntu 14.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1344430/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
