[ovirt-users] [Spice-devel] Video performance
Sven Achtelik
Sven.Achtelik at eps.aero
Wed Jan 25 08:07:59 UTC 2017
Hi,
where would I have to add this:
<graphics type='spice' autoport='yes'>
<listen type='address'/>
<image compression='off'/>
<streaming mode='filter'/>
</graphics>
I mean which file or is it somewhere in the config ?
I found something that sounds like it would do the same. What do you think
about that ?
http://www.jieyung.com/en/faq.asp?newsclassid=377&newsid=508
It's written for 3.5 and does something before the VM start with a hook to
change that. Would that also work in 4.06 or is there a more elegant way to
do this ?
Thank you,
Sven
-----Ursprüngliche Nachricht-----
Von: users-bounces at ovirt.org [mailto:users-bounces at ovirt.org] Im Auftrag von
Victor Toso
Gesendet: Montag, 9. Januar 2017 14:50
An: Yaniv Dary <ydary at redhat.com>
Cc: spice-devel at lists.freedesktop.org; Shalabh Goel
<shalabhgoel13 at gmail.com>; users <users at ovirt.org>
Betreff: Re: [ovirt-users] [Spice-devel] Video performance
Hi,
> Hi,
>
> I have installed ovirt engine 4.0.5 on centos 7.3. I installed
> ovirt-node on a separate phyical system and added it to ovirt-engine.
> I installed windows 7 in a VM on the node. I installed all the virtio
> drivers in the guest. The protocol used by me to access VM is Spice
> QXL. I have installed virt-viewer on the clients to access (one is
> windows and othe ris ubuntu) Now, when I pay the sample video
> "wildlife" in the windows the video frame rate is very low and it is
> skipping a aot of frames. I tested it on both of the clients. The
> screen resolution is 1280x1024 on ubuntu and 1366x768 on windows.
>
> The *lscpu* output of the node is:
>
> Architecture: x86_64
> CPU op-mode(s): 32-bit, 64-bit
> Byte Order: Little Endian
> CPU(s): 48
> On-line CPU(s) list: 0-47
> Thread(s) per core: 2
> Core(s) per socket: 12
> Socket(s): 2
> NUMA node(s): 2
> Vendor ID: GenuineIntel
> CPU family: 6
> Model: 62
> Model name: Intel(R) Xeon(R) CPU E5-2697 v2 @ 2.70GHz
> Stepping: 4
> CPU MHz: 3047.097
> BogoMIPS: 5406.43
> Virtualization: VT-x
> L1d cache: 32K
> L1i cache: 32K
> L2 cache: 256K
> L3 cache: 30720K
> NUMA node0 CPU(s): 0-11,24-35
> NUMA node1 CPU(s): 12-23,36-47
>
> The top command output is showing the following on the node:
>
> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+
> COMMAND
>
> 30219 qemu 20 0 5040176 4.048g 13564 S 113.2 3.2 16:05.49
> qemu-kvm
>
> 6178 root 15 -5 1495476 48092 10676 S 28.1 0.0 300:58.82
> supervdsmServer
>
> 361 root 25 5 0 0 0 S 7.0 0.0 333:14.58
> ksmd
>
> 265 root rt 0 0 0 0 S 2.6 0.0 0:06.80
> migration/32
>
> 27504 qemu 20 0 5137240 4.412g 13516 S 2.6 3.5 10:53.39
> qemu-kvm
>
> 30222 root 20 0 0 0 0 S 2.0 0.0 0:11.98
> vhost-30219
>
> 6329 vdsm 0 -20 3258204 151772 13004 S 0.7 0.1 65:29.75 vdsm
>
> -
> Please suggest what should I do to improve the video performance.
You could try enabling the streaming mode, disabled by default in el7 due
different issues (see [0])
[0] https://bugzilla.redhat.com/show_bug.cgi?id=1294564
To enable the streaming mode, you should include that inside the graphics
node, see mine bellow for an example. Options are 'off', 'all'
and 'filter'.
<graphics type='spice' autoport='yes'>
<listen type='address'/>
<image compression='off'/>
<streaming mode='filter'/>
</graphics>
Cheers,
toso
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