Slow performance over VPN/cable modem

David Fraser davidf@sjsoft.com
Sat Nov 22 07:31:00 GMT 2003


Bruce A. Hamilton wrote:

> XP Pro SP1, Pentium 2.66 GHz, 1 GB memory.
>
> I am running the latest cygwin including XFree86 4.3.0.
>
> Performance connecting to my workplace via VPN over cable modem is 
> painfully slow, similar to what I used to see running X over dialup 
> years ago. I'm running a local window manager fvwm2 then "ssh -X" to 
> hosts at work via my local xterms.
>
> The app I'm most interested in is Veritas NetBackup 4.5 jnbSA, which 
> is written in Java and not exactly speedy even at work, but at work we 
> are talking a couple of seconds to refresh the screen, versus nearly a 
> minute for the tiniest changes at home.
>
> My Internet connection in general is very fast, on the order of 2 
> Mb/sec, and I get excellent response over my VPN to work using vanilla 
> text apps and MS Outlook.
>
> Thanks for any suggestions. I'm quite sure this in an X issue. Wasn't 
> MIT supposed to be working on "low-bandwidth X" years ago?
>
> Three years ago I had the good fortune to be able to use Graphon's 
> Go-Global to channel X over dialup and was VERY impressed.
>
> More recently I played a little bit with VNC and it seemed to have its 
> own performance issues so I have no pursued it further at this time, 
> but I'll consider it if you recommend it.
>
> --Bruce (Bruce Hamilton, Redondo Beach, CA)
> bhami@pobox.com
> http://bhami.com/
>
>
I would recommend trying the latest version of VNC (4.0b4) from 
realvnc.com if you are having bandwidth constraints, though there may be 
other suggestions about X...

David



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