[Spice-devel] Question about Spice with Wayland

[Fabio Fantoni]

Il 05/10/2015 20:08, Yury Shvedov ha scritto:
> Hi, Fabio!
>
> Thank you for your interest to this project! But unfortunately this
> project now is in proof-of-concept state and usable only via loopback
> network. And as you notice it did not evolve by me for years. The
> problem is I changed my scientific theme by accident at this point and
> could not continue it as I have wanted. But I feel this project has
> big potential and space of improvement. It would be great if you want
> and can to handle this project and I will support you as I could.

Hi, I have only little free time and very low knowledge but I'm looking
if is possible rebase your project on latest weston version and try it.
To make easier and faster see what are the add/changes of spice
compositor and rebase it I created a new branch with latest upstream
commit you used, all changes except the latest commit in first commit
added and a cherry-pick of the latest:
https://github.com/Fantu/compositor-spice/commits/test
I not saw an howto and from a very fast code look seem that
"--enable-spice-compositor --enable-monitor-renderer" add in configure
is needed and when start listen seems hardcoded on localhost:5912
@Yury Shvedov: Can you send me all essential notes for use it if they exist?
For what you know rebase on latest weston version will require many
changes/fixes or should be working or easy to adapt? (documented
api/functions weston changelog for compositor or other module)
Should be possible add other spice options, for example compression,
where listen (ecc...) to pass to spice-server and make it easy possible
use them with small patches for fast lan tests or require bigger work?

I saw that rdp is already present by years but any time I looked it
seems always that newer freerdp version (in development was needed), not
good stable api probably?
Are spice the things used/needed more "stable" or continuous changes
(and version prerequisite increments) will be needed?

Thanks for any reply and sorry for my bad english.

>
> Sorry for my english too! =)
> Kind regards
> Yury Shvedov
> On 10/04/2015 03:12 PM, Fabio Fantoni wrote:
>> Hi, trying to have better performance on low cost spice thin client
>> (for example rpi2) I saw too low performance, remote-viewer at 100%
>> cpu with only one core used, but also xorg process with high cpu
>> usage and all other things open unusable (including a simple terminal).
>> I tried with wayland using weston (GDK_BACKEND=/wayland
>> /remote-viewer), spice performance is still too low on "high usage"
>> but all other things is fully usable.
>> I'm trying to improve spice performance with opengles (using vc4
>> drivers) and compiling cairo for using it but for now I had some
>> problems.
>> I tried to search other spice tests with wayland, I found this old
>> project:
>> https://github.com/ein-shved/compositor-spice/
>> Is about weston backend, with very basic features and without recent
>> commits.
>> Was posted also in this mailing list long time ago:
>> http://lists.freedesktop.org/archives/wayland-devel/2013-April/008902.html
>> Seems interesting a possibility of better performance (including
>> possible future acceleration with opengl and/or vulkan) and
>> integratation.
>> Someone still working on it?
>>
>> I also see a specific wayland client on freerdp for example:
>> https://github.com/FreeRDP/FreeRDP/tree/master/client/Wayland
>> Doing something similar for spice client can be useful or other
>> importance changes are needed for significative performance improve?
>>
>> About qxl driver in linux domU's seems there are problems with many
>> desktop envinment (gnome, kde, unity ecc... I saw it reasonableon
>> lxde on my tests), I saw qxl kms support and something in drm about
>> qxl, it can works for example for a fast test with weston drm backend
>> and I should try or addition thing is needed?
>> Sorry is these are stupid questions but I don't have knowledge about.
>>
>> Thanks for any reply and sorry for my bad english.
>>
>

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