On Tue, Feb 01, 2011 at 10:19:09PM -0800, Shirley Ma wrote: > 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. Interesting. Yes, I agree an API extension would be helpful. However, wouldn't just the signaling reduction be enough, without guest changes? > However vhost signaling reduction is needed as well. The patch I > submitted a while ago showed both CPUs and BW improvement. > > Thanks > Shirley Which patch was that? -- 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
