Re: [Qemu-devel] Re: qemu-kvm faster than qemu?

[Gleb Natapov]

On Thu, Aug 26, 2010 at 12:24:11PM +0200, Alexander Graf wrote:
> 
> On 26.08.2010, at 11:59, Gerd Hoffmann wrote:
> 
> > On 08/26/10 09:59, Gleb Natapov wrote:
> >> On Thu, Aug 26, 2010 at 09:53:27AM +0200, Gerd Hoffmann wrote:
> >>>   Hi,
> >>> 
> >>>> Also try qemu-kvm with -no-kvm-irqchip. I can't believe an in-kernel
> >>>> lapic would make this much of a difference with windows 7 but it's worth
> >>>> trying.
> >>> 
> >>> Didn't try win7, but for winxp it is a *huge* difference.
> >>> 
> >> On which HW?
> > 
> > Intel without ept.  It's a Lenovo T500.
> > 
> >> My guess is this is because of tpr patching.
> > 
> > Most like, yes.
> 
> Isn't that only required on SVM?
> 
No, old vmx too.

--
                        Gleb.