* xorg running very slow problem
@ 2010-01-10 5:54 John Wong
2010-01-10 6:25 ` Thomas Fjellstrom
0 siblings, 1 reply; 6+ messages in thread
From: John Wong @ 2010-01-10 5:54 UTC (permalink / raw)
To: kvm
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=/etc/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.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: xorg running very slow problem
2010-01-10 5:54 xorg running very slow problem John Wong
@ 2010-01-10 6:25 ` Thomas Fjellstrom
2010-01-10 6:46 ` John Wong
0 siblings, 1 reply; 6+ messages in thread
From: Thomas Fjellstrom @ 2010-01-10 6:25 UTC (permalink / raw)
To: kvm; +Cc: John Wong
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.
> --
> To unsubscribe from this list: send the line "unsubscribe kvm" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
--
Thomas Fjellstrom
tfjellstrom@shaw.ca
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: xorg running very slow problem
2010-01-10 6:25 ` Thomas Fjellstrom
@ 2010-01-10 6:46 ` John Wong
2010-01-10 6:56 ` Thomas Fjellstrom
0 siblings, 1 reply; 6+ messages in thread
From: John Wong @ 2010-01-10 6:46 UTC (permalink / raw)
To: tfjellstrom, KVM list
Thomas Fjellstrom 提到:
> 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.
>
Sorry, what is vmvga adapter?
How to switch it?
in guest OS/xorg or on host kvm command?
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: xorg running very slow problem
2010-01-10 6:46 ` John Wong
@ 2010-01-10 6:56 ` Thomas Fjellstrom
2010-01-10 7:40 ` John Wong
0 siblings, 1 reply; 6+ messages in thread
From: Thomas Fjellstrom @ 2010-01-10 6:56 UTC (permalink / raw)
To: kvm; +Cc: John Wong
On Sat January 9 2010, John Wong wrote:
> Thomas Fjellstrom 提到:
> > 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.
>
> Sorry, what is vmvga adapter?
>
> How to switch it?
> in guest OS/xorg or on host kvm command?
both, if you have an existing xorg.conf file in the guest.
in qemu you'd change '-vga std' to '-vga vmware' and change the xorg.conf in
your guest (only if there is one with a driver specified) to use the vmware
driver.
> --
> To unsubscribe from this list: send the line "unsubscribe kvm" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
--
Thomas Fjellstrom
tfjellstrom@shaw.ca
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: xorg running very slow problem
2010-01-10 6:56 ` Thomas Fjellstrom
@ 2010-01-10 7:40 ` John Wong
2010-01-10 7:50 ` John Wong
0 siblings, 1 reply; 6+ messages in thread
From: John Wong @ 2010-01-10 7:40 UTC (permalink / raw)
To: tfjellstrom, KVM list
Thomas Fjellstrom 提到:
> both, if you have an existing xorg.conf file in the guest.
>
> in qemu you'd change '-vga std' to '-vga vmware' and change the xorg.conf in
> your guest (only if there is one with a driver specified) to use the vmware
> driver.
Yeah, after switch to use vmware, (both kvm command and xorg.conf),
the problem is gone.
(use qemu-kvm.git snapshot)
Thank you, Thomas.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: xorg running very slow problem
2010-01-10 7:40 ` John Wong
@ 2010-01-10 7:50 ` John Wong
0 siblings, 0 replies; 6+ messages in thread
From: John Wong @ 2010-01-10 7:50 UTC (permalink / raw)
To: tfjellstrom, KVM list
John Wong 提到:
> Thomas Fjellstrom 提到:
>
>> both, if you have an existing xorg.conf file in the guest.
>>
>> in qemu you'd change '-vga std' to '-vga vmware' and change the xorg.conf in
>> your guest (only if there is one with a driver specified) to use the vmware
>> driver.
>>
> Yeah, after switch to use vmware, (both kvm command and xorg.conf),
> the problem is gone.
> (use qemu-kvm.git snapshot)
>
> Thank you, Thomas.
After switch to use vmware video adapter, i have another problem.
the keyboard did not work, unless i need put "Ctrl+Alt" first,
and i can not use "Ctrl+Alt+f" hotkey switch to fullscreen.
Please help, thank you.
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2010-01-10 7:50 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
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2010-01-10 5:54 xorg running very slow problem John Wong
2010-01-10 6:25 ` Thomas Fjellstrom
2010-01-10 6:46 ` John Wong
2010-01-10 6:56 ` Thomas Fjellstrom
2010-01-10 7:40 ` John Wong
2010-01-10 7:50 ` John Wong
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