[Spice-devel] Spice optimization over WAN

[Thiago Nascimento Araujo]

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. 



----- Mensagem original -----

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. 

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