Re: spice udp support

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On Út, 2016-02-02 at 10:24 +0100, Christophe Fergeau wrote:
> Hey,
> 
> On Tue, Feb 02, 2016 at 06:10:28PM +0900, Sunny Shin wrote:
> > I have a few questions about udp version of spice protocol.
> > 
> > Is there a plan to support udp in spice protocol?
> > 
> > If we support udp, what do we need to implement?
> > Is it enough to change tcp channels to udp ones?
> 
> Maybe that would be enough, maybe more changes would be needed, I cannot
> exactly tell you. My main worries with UDP would be packet drops as
> there is nothing guaranteeing you that the packets you send will arrive
> at all to the other end of the connexion.
> 
> > Would there be any benefits over tcp version? possibly better performance?
> 
> There would most likely be less overhead, but at the cost of not having
> guarantees of packet delivery, so I'm not sure how good this tradeoff
> would be..
> Experimenting with this sounds interesting though!

Yonit did some experiments with video streaming over UDP and there was
no performance gain IIRC.

David

> Christophe
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