I've been able to confirm the same as the OP regarding the different Ubuntu distrubutions as guests. These tests should help ruleout/pinpoint the kernel and modules.
Using the same 12.04 hypervisors for all tests. Testing different guests I was able to determine. -Lucid with default kernel is NOT affected. -Precise with default kernel is affected. The test... I tared up each guest kernels and dropped them into the oposing distribution. Results -Lucid with Precise Kernel is NOT affected. -Precise with Lucid Kernel is affected. Conclusion 12.04 Precise distribution guest is affected regardless of the kernel used. -- 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/ubuntu/+source/qemu-kvm/+bug/1100843/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
