[Spice-devel] KVM-SPICE: View youtube videos smoothly
Oscar Segarra
oscar.segarra at gmail.com
Fri Mar 17 00:40:06 UTC 2017
Hi Pavel,
I have installed the latest nightly build but I have not seen any
difference to adjust spice options:
[image: Imágenes integradas 1]
I have not experienced any performance improvement... Just, from the
virt-manager I'm not able to see my windows 10 desktop (it is completely
black) XS
Am I looking at the correct place?
[image: Imágenes integradas 2]
>From Remote Viewer I can see the desktop as usual (I'm upgrading windows):
[image: Imágenes integradas 3]
May I revert the spice install in order to make my virt-manager work
properly again?
Thanks a lot.
2017-03-09 13:24 GMT+01:00 Oscar Segarra <oscar.segarra at gmail.com>:
> Hi Pavel,
>
> Yes, in my configuration I have already set:
>
> vram: 64MB
> streaming mode='filter' <-- I have tested with 'all" as well with the same
> results
> image compression='auto_glz'
>
> When I connect through the Internet or from my home wi-fi (54Mbps) In the
> logs I can see "LOW BANDWITH" detected, and the video performance is really
> bad.
>
> Thanks a lot.
>
>
> 2017-03-09 13:14 GMT+01:00 Pavel Grunt <pgrunt at redhat.com>:
>
>> On Thu, 2017-03-09 at 06:43 -0500, Frediano Ziglio wrote:
>> >
>> >
>> > It's not a small addition. Usually wifi has a much higher latency
>> > then wired lan. For comparison on lan usually you
>> > have 2-4 ms latency while on wifi 80-100 ms unless you have powerful
>> > and quite idle network infrastructure
>> > (but still higher than wired).
>> >
>> > Unfortunately currently the protocol implementation is quite latency
>> > dependent.
>> >
>> > I don't think the latency here is an issue if you are using a recent
>> > encoder (here some client
>> > guy should help on how to know the encoder used).
>>
>> Since you are on el7 system you can test our nightly builds:
>> https://copr.fedorainfracloud.org/coprs/g/spice/nightly/
>> which provides ability to switch the video encoder in spicy (package
>> spice-gtk-tools) under Options menu.
>>
>> Your vm needs to have the video streaming enabled (set to 'filter' or
>> 'all').
>>
>> (virsh edit VM ; and add <streaming mode='all'/> to graphics node)
>>
>> Also check if the image compression is turned on (ideally set to glz)
>>
>> Pavel
>>
>> > Sorry, was meaning bandwidth in the above sentence.
>> >
>> > About the lag recently we detected another issue in the protocol
>> > implementation, hope
>> > we can tune and fix it in a short period.
>> >
>> > Frediano
>> >
>> >
>> > I'd like to add that the connection is via wi-fi (54Mbps).
>> >
>> > Is it enough for spice videos?
>> >
>> > thanks a lot.
>> >
>> > 2017-03-08 19:14 GMT+01:00 Oscar Segarra <oscar.segarra at gmail.com>:
>> > > Hi,
>> > >
>> > > Youtuve videos from virt-manager (locally) has an acceptable
>> > > bejaviour... but If I try to connect from the LAN, the behaviour
>> > > is not acceptable... the sound goes much faster than the image.
>> > >
>> > > I have increased the video memory up to 64MB but I have not
>> > > experienced any improvement.
>> > >
>> > > Is there any way to diagnose this lag problems?
>> > >
>> > > Thanks a lot.
>> > >
>> > > 2017-03-03 22:45 GMT+01:00 Oscar Segarra <oscar.segarra at gmail.com>
>> > > :
>> > > > Hi,
>> > > >
>> > > > After some research, I have been able to install a newer version
>> > > > from:
>> > > >
>> > > > https://fedorapeople.org/groups/virt/virtio-win/direct-downloads
>> > > > /archive-virtio/virtio-win-0.1.133-1/
>> > > >
>> > > > Now, Video has experienced a nice improvement... but sound still
>> > > > "hangs"...
>> > > >
>> > > > Is there any advice to customize sound?
>> > > >
>> > > > Thanks a lot.
>> > > >
>> > > > 2017-03-03 21:45 GMT+01:00 Pavel Grunt <pgrunt at redhat.com>:
>> > > > > On Fri, 2017-03-03 at 20:19 +0100, Oscar Segarra wrote:
>> > > > > > I must say the version is weird.
>> > > > > > It is the version that comes with 2K8. I have not been able
>> > > > > to find
>> > > > > > the W10 qxl driver... ¿Can you paste the link?
>> > > > > >
>> > > > > It is on our page
>> > > > > https://www.spice-space.org/download.html#windows-binaries
>> > > > >
>> > > > > Windows QXL-WDDM-DOD driver
>> > > > >
>> > > > > > Beside that which versions (kvm, spice) are you using? Are
>> > > > > you using
>> > > > > > a recent viewer?
>> > > > > >
>> > > > > > qemu-kvm.x86_64 10:1.5.3-126.el7
>> > > > >
>> > > > > > @base
>> > > > > > qemu-kvm-common.x86_64 10:1.5.3-126.el7
>> > > > > >
>> > > > > > spice-glib.x86_64 0.31-6.el7
>> > > > >
>> > > > > > @base
>> > > > > > spice-gtk3.x86_64 0.31-6.el7
>> > > > >
>> > > > > > @base
>> > > > > > spice-protocol.noarch 0.12.11-1.el7
>> > > > >
>> > > > > > @base
>> > > > > > spice-server.x86_64 0.12.4-19.el7
>> > > > >
>> > > > > > @base
>> > > > > >
>> > > > > > Regarding to the viewer version:
>> > > > > >
>> > > > > > remote-viewer.exe version 5.0-256
>> > > > > >
>> > > > > > Thanks a lot!
>> > > > > >
>> > > > > >
>> > > > > > 2017-03-03 18:04 GMT+01:00 Frediano Ziglio <fziglio at redhat.c
>> > > > > om>:
>> > > > > > > Hi,
>> > > > > > >
>> > > > > > > In my environment I have a W10 guest running on a centos 7
>> > > > > KVM
>> > > > > > > host.
>> > > > > > >
>> > > > > > > I have installed the following QXL Video driver:
>> > > > > > >
>> > > > > > >
>> > > > > > >
>> > > > > > > But when I try to see (on LAN) a youtube video, it doesn't
>> > > > > play
>> > > > > > > smoothly, even video and sound stops for a while and
>> > > > > continues a
>> > > > > > > little bit later. It looks I can see the video rendering
>> > > > > as i can
>> > > > > > > see a the half of one frame and the half of the following
>> > > > > frame on
>> > > > > > > the same "image".
>> > > > > > >
>> > > > > > > If I minimize the internet explorer (or chrome) to the
>> > > > > task-bar
>> > > > > > > image and sound goes better (not the perfect).
>> > > > > > >
>> > > > > > > ¿Is there any advice to improve video and sound experience
>> > > > > in KVM
>> > > > > > > with spice?
>> > > > > > >
>> > > > > > > Thanks a lot,
>> > > > > > >
>> > > > > > > I must say the version is weird.
>> > > > > > > We released a Windows 10 driver not much ago.
>> > > > > > > Beside that which versions (kvm, spice) are you using? Are
>> > > > > you
>> > > > > > > using a recent viewer?
>> > > > > > > New versions implements different code which requires less
>> > > > > > > bandwidth (should not
>> > > > > > > be a big problem with LAN but you would make sure).
>> > > > > > >
>> > > > > > > Frediano
>> > > > > > >
>> > > > > > >
>> >
>> > _______________________________________________
>> > Spice-devel mailing list
>> > Spice-devel at lists.freedesktop.org
>> > https://lists.freedesktop.org/mailman/listinfo/spice-devel
>>
>
>
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