>From my testing this has been fixed in the saucy version (1.5.0) of qemu. It >is fixed by this patch: f1c72795af573b24a7da5eb52375c9aba8a37972
However later in the history this commit was reverted, and again broke this. The other commit that fixes this is: 211ea74022f51164a7729030b28eec90b6c99a08 So 211ea740 needs to be backported to P/Q/R to fix this issue. I have a v1 packages of a precise backport here, I've confirmed performance differences between savevm/loadvm cycles: http://people.canonical.com/~arges/lp1100843/precise/ ** No longer affects: linux (Ubuntu) ** Also affects: qemu-kvm (Ubuntu Precise) Importance: Undecided Status: New ** Also affects: qemu-kvm (Ubuntu Quantal) Importance: Undecided Status: New ** Also affects: qemu-kvm (Ubuntu Raring) Importance: Undecided Status: New ** Also affects: qemu-kvm (Ubuntu Saucy) Importance: High Assignee: Chris J Arges (arges) Status: In Progress ** Changed in: qemu-kvm (Ubuntu Precise) Assignee: (unassigned) => Chris J Arges (arges) ** Changed in: qemu-kvm (Ubuntu Quantal) Assignee: (unassigned) => Chris J Arges (arges) ** Changed in: qemu-kvm (Ubuntu Raring) Assignee: (unassigned) => Chris J Arges (arges) ** Changed in: qemu-kvm (Ubuntu Precise) Importance: Undecided => High ** Changed in: qemu-kvm (Ubuntu Quantal) Importance: Undecided => High ** Changed in: qemu-kvm (Ubuntu Raring) Importance: Undecided => High ** Changed in: qemu-kvm (Ubuntu Saucy) Assignee: Chris J Arges (arges) => (unassigned) ** Changed in: qemu-kvm (Ubuntu Saucy) Status: In Progress => Fix Released ** Changed in: qemu-kvm (Ubuntu Raring) Status: New => Triaged ** Changed in: qemu-kvm (Ubuntu Quantal) Status: New => Triaged ** Changed in: qemu-kvm (Ubuntu Precise) Status: New => In Progress -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1100843 Title: Live Migration Causes Performance Issues To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1100843/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
