On Tue, 2011-02-01 at 22:05 -0800, Shirley Ma wrote: > > The way I am changing is only when netif queue has stopped, then we > start to count num_free descriptors to send the signal to wake netif > queue.
I forgot to mention, the code change I am making is in guest kernel, in xmit call back only wake up the queue when it's stopped && num_free >= 1/2 *vq->num, I add a new API in virtio_ring. However vhost signaling reduction is needed as well. The patch I submitted a while ago showed both CPUs and BW improvement. Thanks Shirley -- 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
