Re: [User Question] Repeated severe performance problems on guest

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On 04/19/2013 07:59 AM, Stefan Hajnoczi wrote:

Hi Stefan,

> BTW does the host CPU support Intel Extended Page Tables or AMD Nested
> Page Tables?  grep 'npt\|ept' /proc/cpuinfo
>
> (I think the kvm_stat is saying EPT/NPT are not in use)
Host CPU has EPT.


> That is virt-manager.py, exactly doing that.
> Okay, I was wondering if something is causing libvirt and maybe QEMU to
> act strangely.  If its just virt-manager then it's probably not the
> issue.


We upgraded to RHEL 6.4 yesterday. Now running kernel 2.6.32-358 and
qemu-kvm 0.12.1.2-2.355 .
Maybe this does improve something...


Best regards,

Martin
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