>From: MaoXiaoyun
>Sent: Thursday, May 19, 2011 12:19 AM
>HI:
>
> I have a host with 16 physical CPUS. Dom0 has 4 VCPUS.
>
> When only start a domU-A(windows 2003 x86 64rc 2) with 16 VCPUS, it starts
>quickly and eveything is fine.
does same thing happen if you launch B/C/D after A?
Thanks
Kevin
>
> But if I first start domU-B, which has 2VCPUS, domU-C 4VCPUS, and domU-D
>8 VCPUS, later I start DomUA again,
(so we have total 34 VCPUS, plus dom0), it will takes very long time for domU-A
to start ,and during the start, its CPU
utilizaiton is around 800% from xm top, after its start, it response very slow
in VNC, ans CPU utiliazation keeps high.
And right after I destoy other 3 domUs, domUA CPU drops to normal.
>
> It might relate to CPU schedule, btw, my xen is 4.0.1.
>
> Any comments?
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