[Spice-devel] spice 0.6.3 slower than 0.4?

[Vermonden David]

Thanks for your quick response!

When I try to install the virtio-serial driver my XPSP3 always complains
it can't be installed. I used:
http://spice-space.org/download/unstable/vioserial-win-1.1.16.zip How
can i troubleshoot this?

Is the vdagent (service) supposed to be always running on the guest? Or
does it only starts when "nessesary"? When I manually start that service
it immediately stops. Maybe due to the uninstalled vio serial device?

Slower when I play a movie (tried serveral). For instance when playing a
need for speed full HD movie it goes very smooth with spice 0.4 with
correct sound synchronisation but when using 0.6.3 or 0.8 it shocks
(when heavy action it's almost a slide show) and the sound isn't
syncronised anymore.

For spice 0.6.3 I used qemu version 0.13. For spice 0.8 I tried with
both Qemu 0.13 and 0.14. In both cases I enabled kvm otherwises they are
both quite slow. For spice 0.4 I used qemu-spice on Fedora 12 (installed
from the rpm's in the Downloadsection "Spice RPMs for for Fedora 12
(0.4.x)").

Do you advise to use the virtio disk driver when using the spiced Qemu?

Is it also good to use qxl driver 0.6.1 in conjunction with spice 0.8 or
is it better to wait for qxl driver 0.8?

Thanks again! I really want to keep using this great software.

Kind regards,
David

-----Oorspronkelijk bericht-----
Van: Alon Levy [mailto:alevy at redhat.com] 
Verzonden: maandag 14 maart 2011 9:29
Aan: Vermonden David
CC: spice-devel at lists.freedesktop.org
Onderwerp: Re: [Spice-devel] spice 0.6.3 slower than 0.4?

On Mon, Mar 14, 2011 at 09:07:45AM +0100, Vermonden David wrote:
> Hi
> 
> First and foremost thanks for this great software!
> 
> I installed the vdagent (service) and the qxl driver 0.6.1 on a
> XPSP3-guest succesfully. However I don't manage to install the
> virtio-serial driver. Is it necessary? Is this the replacement for the
> vdiport driver in version Spice 0.4?

Yes. To run vdagent you will need virtio-serial driver.

> I start the machine on a Fedora 14 with Spice 0.6.3 like this:
> "qemu-system-x86_64 -boot c -drive
> file=/vms/xpsp03_01.img,if=virtio,boot=on -soundhw ac97 -nographic
-net
> nic,macaddr=52:54:00:13:9f:17,model=virtio -net
> tap,ifname=XP3,script=/etc/lan-ifup -vga qxl -spice
> port=5931,disable-ticketing -enable-kvm -m 1024"
> 
> When using Spice 0.6.3 or 0.8 it is much slower then version 0.4. How

What is slower specifically? have you tested the same qemu in both
cases?
if you are using qemu and not qemu-kvm the speed difference could be
just that.
Can you compare your newer qemu to the older qemu without spice?

> can I check whether Spice is successfully enabled on the client? Using
> the spicec 0.6.3 or 0.8 is even slower than VNC and I know from
version
> 0.4 that Spice should perform much better. I tested by playing the
same
> movie on the same guest for spice 0.4, 0.6.3 and 0.8.

What qemu versions did you use for each? or did you forward port spice
0.4 to
the current qemu?

> 
> I also played arround with the options in Qemu 0.14 for spice (spice
0.8
> libs) but I don't see any difference. Any tips for debbugging are
> welcome!
> 
> Thanks in advance!
> David
> 
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