Avi Kivity wrote:
dyntick-enabled guest: - reduce the load on the host when the guest is idling (currently an idle guest consumes a few percent cpu)
You do not need dynticks for this actually. Simple no-tick-on-idle like Xen has works well enough. While you're modifying the timer code, you might also want to add proper accounting for steal time. Time during which your guest had a runnable process, but was not actually running itself, should not be accounted against the currently running process. I wonder if it would be possible to simply copy some of the timer code from Xen. They have the timing quirks worked out very well and their timer_interrupt() is pretty nice code. (Now I need to buy myself another VT box so I can help out with KVM :)) http://virt.kernelnewbies.org/ParavirtBenefits has some other features you may want to have :))) -- Politics is the struggle between those who want to make their country the best in the world, and those who believe it already is. Each group calls the other unpatriotic. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
