Hi guys,

> Gupta, Pankaj G wrote:
> 
> >Hi,
> >
> >I want to know how much a vncserver process usage of memory? 
> How can i
> >measure that? Is it same on Solaris? Can vnc server affect 
> other system
> >processes if memory usage is high? or in another way?
> >  
> >
> On m$windows machines and unix machines where it forwards the 
> console, 
> vncserver is relative small since its main job is to read the display 
> memory and forward that to the viewer.

This is not true.  VNC Server for Windows creates a buffer large enough to
hold a complete copy of the server display, plus a second copy to allow
differences to be detected efficiently.

> On unix machines, where vnc provides a fresh display, the 
> display memory 
> is entirely in program memory. Then it is a complete (however 
> minimal) 
> X11 server so it is definitly larger. For 1024 x 768 pixels 
> and 8 bits 
> colordepth, I'd say it uses a megabyte memory. With 1280 x 1024 and 
> fullcolor, it uses more than 5 MByte for the display memory 
> only. Since 
> it is a complete new display, you must add all programs that make the 
> session like the desktop manager (kde, gnome, cde), the 
> window manager 
> and such. They also have their footprint which might be based on the 
> display size and colordepth.

This is true, with the caveat that VNC Server for Unix also keeps a
differencing buffer, by default, so a 1280x1024x24 display will typically
take up around 10Mb for the desktop content.

Regards,

Wez @ RealVNC Ltd.
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