[Xen-users] windows xp/xen cpu utilization

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I have windows xp installed under xen. When the guest system is idle,
xm top shows about 60% utilization. What is even more interesting, by 
connecting through an rdp session and moving the mouse quickly around the 
utilization under xen lowers to about 10%. The behaviour is also the same 
with GPLPV 0.9.9. It seems that this 60% is consumed while spinning inside 
some idle loop. I am using stock Xen 3.2.1, with an AMD Phenom 9650 CPU.
How can i make windows give away unneeded cpu? Would calling HLT in a loop 
be a good solution, or is there some better way? Maybe there is some ready 
solution?
Jacek




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