On Tue, Mar 12, 2013 at 01:17:26PM +0100, Han Pilmeyer wrote: > I thought it might be nice to chime in with my results. I'm running > nearly the same versions, except that I'm still using the 0.30 > version of the spice-guest-tools. > > I just tested my network speed at the KVM host and in my Windows 7 > guest. The largest difference was in the ping time which was doubled > in the guest (10 ms versus 5 ms in the host). The network bandwidth > was almost the same, i.e. in both cases download and upload was over > 70 Mbps (to my ISP). Overall, I would say this is not too bad. > > I usually have reasonable performance watching videos from within > the guest. The one thing where I do see issues is with Microsoft > Lync while trying to do audio or video calls with colleagues. This > works for several seconds (I've seen up to 20 or 30 seconds) and > then invariably the connection drops which Lync claims to be due to > a flaky network connection. I do not buy this at all. But somehow > Lync sees something about the KVM network connection that it doesn't > like. If you are using the virtio network driver, I'd try not using it to see if this helps, and vice versa. Christophe
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