Re: [CentOS-virt] Windows Xen VM's have high guest CPU usage and poor performance

Pasi Kärkkäinen wrote:

...

Oh, one more thing.. I noticed you had apic=0 in the WinXP config. Try changing that to 1. Not sure if that helps, but worth trying.

Also, are you running latest CentOS 5.4 with updates on dom0?

If yes, you might want to try Xen 3.4.2 from http://gitco.de/repo/ to see if that makes a difference.

-- Pasi

Hi Pasi,

To answer all of your questions:

I am for sure using the GPLPV drivers.

I have used the guest via VNC and RDP and received the same performance.

The XP guest does not appear to have high i/owait.

I have tried both apic=0 and apic=1.

And my host OS is all up to date.

Xen 3.4.2 may be an option, but I think I am going to pursue VMWare ESXi at this point.

I appreciate your help and all of your suggestions.

Thanks, Ryan