[Spice-devel] KVM-SPICE: View youtube videos smoothly

[Frediano Ziglio]

> 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).

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.com >:
> > > > 
> > > 
> > 
> 
> > > > > > > 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
> > > > 
> > > 
> > 
> 
> > > > > > >
> > > > 
> > > 
> > 
> 
> > > > > > >
> > > > 
> > > 
> > 
>
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