Re: [Xen-users] Windows Performance Monitor on a Win2003R2 DomU

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Wed, May 06, 2009 at 01:50:30PM -0700, Robinson, Eric wrote:
> I have 3 Windows terminal servers. The two physical servers have average
> disk queue lengths around 1-2, which is normal for a RAID 1 server. The
> third Windows terminal server is a Xen DomU. When I run perfmon on it,
> average disk queue lengths are 20,000+. What the heck accounts for the
> difference? That number has to be spurious. There's no way the disk
> queue could really be that high.
> 

Are you using Qemu emulated disk devices/drivers (default), or optimized
(paravirtualized) drivers?

-- Pasi

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