slow connection to X server

Peter Harris pharris at
Fri Nov 12 07:50:48 PST 2010

On 2010-11-12 02:09, Han wrote:
> my question is: in what kind of condition the X server would send
> large amount of data to client even before the Window show up?

Wild guess: QueryFont on a large (unicode) font. Try using client side
fonts to avoid this (eg. "xterm -fa Courier -fs 10").

>  Is there any debug tools to decode the data?

Wireshark can decode core X11. Wireshark version 1.4 and later decode
extensions, too.

Peter Harris
               Open Text Connectivity Solutions Group
Peter Harris          
Research and Development        Phone: +1 905 762 6001
pharris at            Toll Free: 1 877 359 4866

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