Hi, On Tue, 2006-05-23 at 08:55 -0700, Ben wrote: > Well, this gives me hope that I'm suffering from some kind of > misconfiguration issue. I'm using LVM-backed domUs, and I see > dom0 hdparm-t: 53.68 MB/sec > domU hdparm -t: 18.39 MB/sec "top" and "xm top", perhaps? If you have fast storage and slow CPUs, you may be seeing the system struggle to keep the IO pipeline between domU and dom0 full enough to saturate the disk, for example. Another thing, are you using "phy:" or "file:" on the domU config? --Stephen