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

Discussion:

Oscar Segarra

2017-03-02 23:07:00 UTC

Hi,

In my environment I have a W10 guest running on a centos 7 KVM host.

I have installed the following QXL Video driver:

[image: ImÃ¡genes integradas 1]

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).

Â¿Is there any advice to improve video and sound experience in KVM with
spice?

Thanks a lot,

Frediano Ziglio

2017-03-03 17:04:35 UTC

Permalink

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

Oscar Segarra

2017-03-03 19:19:17 UTC

Permalink

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... Â¿Can you paste the link?

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!

Post by Oscar Segarra
Hi,
In my environment I have a W10 guest running on a centos 7 KVM host.
[image: ImÃ¡genes integradas 1]
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).
Â¿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

Pavel Grunt

2017-03-03 20:45:11 UTC

Permalink

Post by Frediano Ziglio
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

Post by Frediano Ziglio
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
qemu-kvm-common.x86_64 10:1.5.3-126.el7
spice-glib.x86_64 0.31-6.el7
spice-gtk3.x86_64 0.31-6.el7
spice-protocol.noarch 0.12.11-1.el7
spice-server.x86_64 0.12.4-19.el7
remote-viewer.exe version 5.0-256
Thanks a lot!

Post by Oscar Segarra
Hi,
In my environment I have a W10 guest running on a centos 7 KVM
host.
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
https://lists.freedesktop.org/mailman/listinfo/spice-devel

Oscar Segarra

2017-03-03 21:45:44 UTC

Permalink

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.

Post by Pavel Grunt

Post by Frediano Ziglio
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... Â¿Can you paste the link?

It is on our page
https://www.spice-space.org/download.html#windows-binaries
Windows QXL-WDDM-DOD driver

Post by Frediano Ziglio
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
remote-viewer.exe version 5.0-256
Thanks a lot!

Post by Oscar Segarra
Hi,
In my environment I have a W10 guest running on a centos 7 KVM host.
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).
Â¿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
https://lists.freedesktop.org/mailman/listinfo/spice-devel

Oscar Segarra

2017-03-08 18:14:57 UTC

Permalink

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.

Post by Oscar Segarra
Hi,
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.

Post by Pavel Grunt

Post by Frediano Ziglio
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... Â¿Can you paste the link?

It is on our page
https://www.spice-space.org/download.html#windows-binaries
Windows QXL-WDDM-DOD driver

Post by Oscar Segarra
Hi,
In my environment I have a W10 guest running on a centos 7 KVM host.
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).
Â¿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
https://lists.freedesktop.org/mailman/listinfo/spice-devel

Oscar Segarra

2017-03-08 18:28:28 UTC

Permalink

I'd like to add that the connection is via wi-fi (54Mbps).

Is it enough for spice videos?

thanks a lot.

Post by Oscar Segarra
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.

Post by Oscar Segarra
Hi,
https://fedorapeople.org/groups/virt/virtio-win/direct-downl
oads/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.

Post by Pavel Grunt

Post by Frediano Ziglio
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... Â¿Can you paste the link?

It is on our page
https://www.spice-space.org/download.html#windows-binaries
Windows QXL-WDDM-DOD driver

Post by Frediano Ziglio
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
remote-viewer.exe version 5.0-256
Thanks a lot!

Post by Oscar Segarra
Hi,
In my environment I have a W10 guest running on a centos 7 KVM host.
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).
Â¿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
https://lists.freedesktop.org/mailman/listinfo/spice-devel

Frediano Ziglio

2017-03-09 11:36:28 UTC

Permalink

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).

About the lag recently we detected another issue in the protocol implementation, hope
we can tune and fix it in a short period.

Frediano

Post by Oscar Segarra
I'd like to add that the connection is via wi-fi (54Mbps).
Is it enough for spice videos?
thanks a lot.

Post by Oscar Segarra
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.

Post by Oscar Segarra
Hi,
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.

Post by Pavel Grunt

Post by Frediano Ziglio
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... Â¿Can you paste the link?

It is on our page
https://www.spice-space.org/download.html#windows-binaries
Windows QXL-WDDM-DOD driver

Post by Frediano Ziglio
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
remote-viewer.exe version 5.0-256
Thanks a lot!

Post by Oscar Segarra
Hi,
In my environment I have a W10 guest running on a centos 7 KVM
host.
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).
Â¿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
https://lists.freedesktop.org/mailman/listinfo/spice-devel

Frediano Ziglio

2017-03-09 11:43:17 UTC

Permalink

Sorry, was meaning bandwidth in the above sentence.

Post by Frediano Ziglio
About the lag recently we detected another issue in the protocol implementation, hope
we can tune and fix it in a short period.
Frediano

Post by Oscar Segarra
I'd like to add that the connection is via wi-fi (54Mbps).
Is it enough for spice videos?
thanks a lot.

Post by Oscar Segarra
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.

Post by Oscar Segarra
Hi,
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.

Post by Pavel Grunt

Post by Frediano Ziglio
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... Â¿Can you paste the link?

It is on our page
https://www.spice-space.org/download.html#windows-binaries
Windows QXL-WDDM-DOD driver

Post by Frediano Ziglio
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
remote-viewer.exe version 5.0-256
Thanks a lot!

Post by Oscar Segarra
Hi,
In my environment I have a W10 guest running on a centos 7 KVM
host.
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).
Â¿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

Oscar Segarra

2017-03-09 12:11:30 UTC

Permalink

Hi!

Thanks a lot for your clarifications.

Nevertheless, I thought that spice protocol was suited to work over the
Internet. Is it right?

Is there any document/advice for configuring spice server (or kvm guest) to
work properly over the Internet?

Thanks a lot!

Post by 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.

Post by Pavel Grunt

Post by Frediano Ziglio
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... Â¿Can you paste the link?

It is on our page
https://www.spice-space.org/download.html#windows-binaries
Windows QXL-WDDM-DOD driver

Post by Frediano Ziglio
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
remote-viewer.exe version 5.0-256
Thanks a lot!

Post by Oscar Segarra
Hi,
In my environment I have a W10 guest running on a centos 7 KVM host.
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).
Â¿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

Pavel Grunt

2017-03-09 12:14:43 UTC

Permalink

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

Post by Frediano Ziglio
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.

Post by Oscar Segarra
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.

Post by Oscar Segarra
Hi,
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.

Post by Oscar Segarra

Post by Frediano Ziglio
I must say the version is weird.
It is the version that comes with 2K8. I have not been able

to find

Post by Frediano Ziglio
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

Post by Frediano Ziglio
Beside that which versions (kvm, spice) are you using? Are

you using

Post by Frediano Ziglio
a recent viewer?
qemu-kvm.x86_64 10:1.5.3-126.el7

Post by Frediano Ziglio
qemu-kvm-common.x86_64 10:1.5.3-126.el7
spice-glib.x86_64 0.31-6.el7

Post by Frediano Ziglio
spice-gtk3.x86_64 0.31-6.el7

Post by Frediano Ziglio
spice-protocol.noarch 0.12.11-1.el7

Post by Frediano Ziglio
spice-server.x86_64 0.12.4-19.el7

Post by Frediano Ziglio
remote-viewer.exe version 5.0-256
Thanks a lot!

Post by Oscar Segarra
Hi,
In my environment I have a W10 guest running on a centos 7

KVM