Moving to the second test system running xen 3.0.3 verified that the defaults are different there. Could you try to add:
acpi=1 apic=1 (I think this is used anyway with vcpu>1) to your configuration. It is rather a feeling but it seemed that the system reacted a bit better with the slightly different interrupt layout. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/751253 Title: Many interrupts and slow disk I/O on Lucid xen guest -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
