Re: xorg running very slow problem

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On Sat January 9 2010, John Wong wrote:
> When i use qemu-kvm-87 or qemu-kvm-0.12.1.2 or snapshot (download from
> http://git.kernel.org/?p=virt/kvm/qemu-kvm.git;a=summary),
> xorg will running very slow (the screen refresh line by line), and i
> noticed the program "Xorg" will running very high cpu(>99% in top).
> 
> If i use qemu-kvm-86, xorg does not have this problem, and run just fine.
> 
> The modules is come from debian-2.6.32 kvm-intel.
> 
> The host is debian/x64/2.6.32.
> 
> I use this command to start kvm:
> 
> ${KVM} -drive
> file=${IMG},index=0,if=virtio,boot=on,cache=none,format=qcow2 \
> -net nic,vlan=${NUM},model=virtio,macaddr=00:AA:BB:CC:DD:0${NUM} \
> -net
> tap,vlan=${NUM},ifname="${iface}",script=/etc/kvm/kvm-ifup,downscript=/et
> c/kvm/kvm-ifdown \
> -localtime -smp 2 \
> -soundhw all \
> -usb -usbdevice tablet \
> -k en-us -monitor stdio \
> -mem-path /hugepages \
> -vga std -sdl \
> -m 2048 -boot c
> 
> Anyone know how to solve this problem?
> 
> Please help, thank you.

What happens if you try the vmvga video adapter instead? I used to have 
issues with even the console being horrendously slow, and switching to vmvga 
improved performance.

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-- 
Thomas Fjellstrom
tfjellstrom@xxxxxxx
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