Re: [Fwd: Using nxagent for roundtrip suppression]

I also had some tests done on the performance improvements, but it seems
like sourceforge rejects those no matter what I do. I'll post those if
someone can figure out how to bypass the sourceforge filters..

Veli-Matti Lintu


to, 2008-09-04 kello 10:37 +0300, Veli-Matti Lintu kirjoitti:
> Hello,
> 
> Sourceforge has been rejecting the mail complaining this:
> 
> <[email protected]>: host
>     mail.sourceforge.net[66.35.250.206] said: 550 This message matches a
>     blacklisted regular expression (pharma ban) (in reply to end of DATA
>     command)
> 
> It doesn't seem to matter what I take out of the mail, so I'm just going
> to split it in several smaller messages. I have absolutely no idea why
> sourceforge thinks that nxagent isn't an allowed topic..
> 
> 
> 
> I've been doing experiments on how to improve the performance of LTSP5
> thin clients. After many unsuccessful attempts, FreeNX's nxagent
> component shows some great promise to improve LTSP graphics performance
> especially on lower end thin clients. Using nxagent only for roundtrip
> suppression means that there's no need to do any changes on the ltsp
> root image and all changes are server based. This approach is quite
> different from the scripts using nxclient with LTSP as this uses
> ldm/gdm/whatever to login and no nxclient is needed. Also localdevs,
> audio etc. work without changes.
> 
> nxagent is a virtual X server that runs on the LTSP server and the X
> applications connect to it instead of the thin client's X server.
> nxagent replies to the X requests locally and also reduces the number of
> requests sent to the real X server. I haven't dug into all the details
> on what nxagent does, but it seems to reduce the number of packets sent
> to the thin client by 60-70% in some cases.
> 
> The setup is experimental, but seems to work. There are some problems
> with failed session starts when logging in and problems with hanging
> processes when logging out. Also the performance impact on the server is
> still unknown. Feel free to test it though.
> 
> Has anyone done similar experiments? Or do you know of any caveats using
> nxagent this way?
> 
> Veli-Matti Lintu
> 
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