I found that two patches need to be backported to solve this issue: ad0b5321f1f797274603ebbe20108b0750baee94 211ea74022f51164a7729030b28eec90b6c99a08
I've added the necessary bits into precise and tried a few tests: 1) Measure performance before and after savevm/loadvm. 2) Measure performance before and after a migrate to the same host. In both cases the performance measured by something like lmbench was the same as the previous run. A test build is available here: http://people.canonical.com/~arges/lp1100843/precise_v2/ ** Patch added: "fix-lp1100843-precise.debdiff" https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/1100843/+attachment/3864309/+files/fix-lp1100843-precise.debdiff -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in 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-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
