[Fedora-xen] expected disk performance?

[Ben]

Today I upgraded to the new xen and kernel packages that just came  
out, as I'd been looking forward to all the IO cleanup supposedly in  
xen 3.0.2. Imagine my disappointment when I found out that my domU's  
virtual disks still seem to be throttled at around 2MB/s sustain  
writes for some reason. My dom0 is "much" better at ~14MB/s sustained  
writes.

Is this what other people are seeing? It's painful.