KVM intolerably slowly

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Hello out there,
Im wondering if anybody could help me with a kvm-problem. I installed a
kernel in version 2.6.22.1 and the kvm in version 33.
My linux guest-system (host and guest are both debian 4.0) has a
satisfying performance. But my  WinXP-installation is terribly slowly.
At a look on my log I saw thousends of these entries:
kernel: kvm: unhandelt wrmsr: 0xc000....
last message repeated 423 times (this fluctuate somewhere between 410
and 440)
and then another entr:
kernel: rtc: lost some interrupts at 1024Hz

Does anybody know why this happend?

What could cause this terrible performance. I allready saw a
WinXP-System on qemu/kvm, which has a passably acceptable performance.

Thank you.

Gruss Christian


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