Re: performance - 8/24 bit color, twm vs. cde

2003-11-10 Thread Corné Beerse
rach elms79 wrote:

For a TightVNC server on an AIX box with a TightVNC client on 
Windows2000, will 8-bit pseudocolor be faster than 24-bit Truecolor?
Yes, mainly because it is roughly 1/3-rd of the data to process. (read compress 
and transfer).

What should I set for the Win2K display colors - 256 colors for 8bit 
pseudocolor?  I can't use 16-bit Truecolor on the VNC server, since
The viewer side desktop should be capable of displaying the colordepth. In most 
situations, the same or a higher colordept should do.

I need to use Cadence which accepts only 8-bit PC or 24-bit TC, so I 
think the 16-bit display colors on Win2K would slow down the 
performance, right?
You should search the mail archive for both vnc and tight-vnc (and optionally 
other vnc variants) for the tool 'Cadence'. I've never seen or used the tool but 
a remark of both Cadence and vnc makes me itchy, I recal by head that this 
cadence is a verry bad behaving X11 application.

Does the X window manager on the AIX box make a difference for speed 
(twm vs. CDE) - since VNC just sends pixels and the AIX box
can handle the heaviness of CDE ok?
For the window manager, in vnc it is similar to at the console or at any other 
X11-server. Between twm and cde, I can say that cde is a lot larger and hence 
uses a lot more resources (memory, cpu etc). I recall that te t in twm is for 
tiny, that sould say something...



CBee
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Re: performance - 8/24 bit color, twm vs. cde

2003-11-09 Thread James Weatherall
VNC 4b4 includes automatic encoding and pixel format selection to cope
with slow links, and has a much faster VNC Viewer implementation than
releases based on the VNC 3.3 series.  I'd recommend upgrading to VNC
4b4 as the first step in improving the remote performance of Cadence on
your system.

Cheers,

Wez @ RealVNC Ltd.
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