Could you confirm that your .1 tests were on a freshly booted Guest OS? Our hardware likely different... but your latencies are close to my Post Restore times.
I just reproded with 1GB RAM and Single CPU. -Pre Save- Simple syscall: 0.0519 microseconds Simple read: 0.1356 microseconds Simple write: 0.1086 microseconds Simple open/close: 1.0265 microseconds local@cc-precise120402-raw:~/lmbench-3.0-a9/bin/x86_64-linux-gnu$ -Post Restore- Simple syscall: 0.0500 microseconds Simple read: 0.2125 microseconds Simple write: 0.1913 microseconds Simple open/close: 1.4482 microseconds local@cc-precise120402-raw:~/lmbench-3.0-a9/bin/x86_64-linux-gnu$ -- 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/ubuntu/+source/qemu-kvm/+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