[Xen-users] Average Disk Queue Lenghts Astronomically High for Win2003 Guest

["Robinson, Eric" <eric.robinson@xxxxxxxxx>]

We have 3 Windows 2003 terminal servers, 2 physical and 1 virtualized.
The physical servers run with Average Disk Queue Lengths < 2/spindle,
which is normal. The virtualized server shows Average Disk Queue Length
of 2000-4000 with the same number of users (and using the same scale).
Even though the disk queue lengths are ridiculously high, users
experience normal performance, so I think it must be something about the
way PerfMon works on a Windows guest. Does anyone have an idea what
accounts for this? 

--
Eric Robinson


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