Can you tell me what the "right drivers" are? Or do you mean enabling
"ACPI"?
I've just finished a whole slew of benchmarks and I'm going back to no-
acpi with the 200% CPU issue, because the VMs are actually faster that
way. Turning on ACPI is very slow.
Looking throw QEMU bug reports, I found that a single CPU WinXP guest
used to use 100% CPU, but that was fixed. Why is this not considered a
bug as well?
Thank you.
** Changed in: qemu
Status: Invalid => New
--
Windows XP uses 200% CPU when given 2 VCPUs
https://bugs.launchpad.net/bugs/654913
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Status in QEMU: New
Bug description:
When using libvirt to give a domain 2 CPUs (<domain
type='kvm'><vcpu>2</vcpu></domain>), the Windows XP kvm process will use 200%
CPU when Windows is idle. Switching the number of CPUs back to 1, the kvm
process gives normal idle percentages.
Using libvirt 0.8.3-1ubuntu9, tried with the following qemu-kvm packages:
qemu-kvm_0.12.4+noroms-0ubuntu7_amd64.deb
qemu-kvm_0.12.5+noroms-0ubuntu4_amd64.deb
The smp flag being set by libvirt is:
-smp 2,sockets=2,cores=1,threads=1
