What's your clock source on the host? cat /sys/devices/system/clocksource/clocksource0/current_clocksource
With the usbtablet device the host clock source is read 2-3 times for frequently which for acpi_pm and hpet jack up the CPU. David -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html