On 08/26/2010 02:59 AM, 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? My guess is this is because of tpr patching.
Does Windows 7 hit the TPR heavily? I thought all modern versions of
Windows significantly reduced their interactions with the TPR.
Regards,
Anthony Liguori
--
Gleb.
