On Wed, Jun 10, 2009 at 06:18:01PM +0300, Avi Kivity wrote: > Michael S. Tsirkin wrote: >> But I don't understand how aio will make implementing it easier - >> or are you merely saying that it will make it worthwhile? >> > > If you have aio, the the NIC and the guest proceed in parallel. If the > guest is faster (likely), then when it sends the next packet it will see > that interrupts are disabled and not notify again. Once aio complete we > can recheck the queue; if it's empty we reenable notifications. If > there's still stuff in it we submit it with notifications disabled. So you are saying that with aio we won't need this optimization at all? I guess it's late in the day, and my mind is fuzzy... -- MST -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
