[Spice-devel] Spice optimization over WAN

[Oscar Segarra]

Hi Thiago,

In my scenario, I'd like to connect to the spice server over WAN but using
remote-viewer (nor the html5 client).

In this case, this convination of parameters, is good as well?

image-compression=auto_glz
streaming-video=off
playback-compression=off
jpeg-wan-compression=always
zlib-glz-wan-compression=always

I also liked to ask for theese parameters:


   - streaming-video=<all|filter|off> Set video streams detection and
   (lossy) compression (default=filter)
   - playback-compression=<on|off> Set playback compression, using the CELT
   algorithm (default=on)


Can you explain to me what is their specific function?

Thanks a lot for your help!

2017-03-16 16:34 GMT+01:00 Thiago Nascimento Araujo <taraujo at artit.com.br>:

> Hi,
>
> I have been using, for quite a while, the following options for those who
> connect through spice-html5 from outside:
>
> image-compression=auto_glz
> streaming-video=off
> playback-compression=off
> jpeg-wan-compression=always
> zlib-glz-wan-compression=always
>
> Since I keep everything up to date: kernel + qemu + spicelibs +
> spice-guest-tools, maybe those options are no longer necessary.
>
> For people who connects through lan or mpls, I leave the spice server on
> default settings.
>
> Note that compression options generates overhead on the server.
>
> Since I have a very small number of external users (Those are for VDI
> non-persistent), and all of them are simple remoteApps, the overhead is ok.
>
> Usually the spice (default settings) + qxl + spice-guest-tools + virtIO
> are the best combo.
>
> The default settings optimizes based on some bandwidth calculations and
> enables or disables some of those options.
>
>
>
> ------------------------------
> *De: *"Oscar Segarra" <oscar.segarra at gmail.com>
> *Para: *"Thiago Nascimento Araujo" <taraujo at artit.com.br>
> *Cc: *spice-devel at lists.freedesktop.org
> *Enviadas: *Quinta-feira, 16 de março de 2017 6:12:05
> *Assunto: *Re: [Spice-devel] Spice optimization over WAN
>
>
> Hi Thiago,
>
> Thanks a lot for the useful link...
>
> Can you/anybody tell us the suggested configuration/parameters for best
> performans over WAN?
>
> Thanks a lot.
>
> 2017-03-16 0:07 GMT+01:00 Thiago Nascimento Araujo <taraujo at artit.com.br>:
>
>> Hi Oscar,
>>
>> I believe the documents is talking about the options described in the
>> link below.
>>
>> https://people.freedesktop.org/~teuf/spice-doc/html/ch03.html
>>
>> Hope it helps.
>>
>> ------------------------------
>> *De: *"Oscar Segarra" <oscar.segarra at gmail.com>
>> *Para: *spice-devel at lists.freedesktop.org
>> *Enviadas: *Quarta-feira, 15 de março de 2017 14:04:14
>> *Assunto: *[Spice-devel] Spice optimization over WAN
>>
>>
>> Hi,
>>
>> I have read quite slowly the datasheet published by redhat:
>>
>> https://www.redhat.com/en/files/resources/en-rhev-spice-
>> protocol-11080057.pdf
>>
>> Where one can read:
>>
>> "In addition, SPICE has WAN optimization capabilities optimize the user
>> experience for lower bandwidth and/or higher latency network connections"
>>
>> Anybody knows where can I find documentation about this optimization
>> capabilities for lower bandwith and high latency networks?
>>
>> Thanks a lot.
>>
>> _______________________________________________
>> Spice-devel mailing list
>> Spice-devel at lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/spice-devel
>>
>>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/spice-devel/attachments/20170316/8b3d6a87/attachment-0001.html>