So I've been running a Windows 8.1 VM with usb and gpu passthrough for a little while. This has become my main pc for doing homework and general surfing. I've recently been paying attention to the CPU usage as I'm debating on adding more VM's to my system (also running archVM).

 

I have installed the latest gplpv drivers and passthrough is working, but when watching a youtube video on my Win8.1 VM the CPU usage seems really high. I've tried to reinstall the drivers to see if that made any difference, but nothing changed. Can anyone point me in the right direction or does this appear normal?

 

 

windows.cfg

name = 'windows'
builder = 'hvm'
vcpus = '2' 
memory = '2048'
#memory = '8192'

disk = ['phy:/mnt/cache/.xen/windows/windows8.img,hda,w']
boot = 'c'
usbdevice = ['tablet','host:046d:c517'] #LOOK UP VIA lsusb COMMAND IN CONSOLE
pci = [ '02:00.0','02:00.1','03:00.0' ] 


xen_platform_pci='1'

on_poweroff="destroy"
on_reboot="restart"
on_crash="destroy"

vif = ['mac=xx:xx:xx:xx:xx:xx,bridge=xenbr0']

device_model_version="qemu-xen-traditional"
acpi = '1'
apic = '1'
sdl = '0'
stdvga = '0'
viridian = '1'
usb=1


vnc = '1'
vnclisten = '0.0.0.0'
vncdisplay = 1

This really belongs in the Xen forum.  Moving this there...