Re: GLX acceleration

[Igor Pechtchanski <pechtcha at cs dot nyu dot edu>]

Lester,

Exactly what kind of speedups are you expecting here?  AFAIU, the
GLX-accelerated XWin will give you speedup only for programs that use the
GLX extension, which automatically excludes most standard X clients (e.g.,
xterm, emacs, etc).  For applications not using the GLX extension, the
GLX-accelerated XWin should be no different from the regular XWin.

Alexander, please correct me if I'm wrong.
	Igor

On Tue, 16 Nov 2004, Lester Ingber wrote:

> Yes, XWin_GL seems to run OK, though I have not seen any dramatic
> speedup yet.
>
> It is likely that part of this may be due to memory problems I seem to be
> having in the latest xorg downloads, with XWin and now also with XWin_GL.
> (I only seem to have these problems in xterm and rxvt, not in a Cygwin
> console window.)
>
> [snip]
>     ----------8<---------- top cut 2/2 -> bottom 2/2 ----------->8----------
>       +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
>
> > In an effort to get better performance on my ThinkPad/XPPRo I'm
> > considering adding the "experimental" GLX acceleration module offered
> > under setup.  Is anyone using this?
>
> I've tested it with some programs including the glut suite. Some of the
> glut examples fail but most work well.
>
> > How do you turn it on?
>
> Just install it and run XWin_GL.exe instead of XWin.exe.
>
> Any feedback is welcome.
>
> BTW: Only the multiwindow mode is useful with the accelerated server since
> the OpenGL drawing surface is not translated to match the window boundaries
> in windowed moded.
>
> bye
> 	ago

-- 
				http://cs.nyu.edu/~pechtcha/
      |\      _,,,---,,_		pechtcha@cs.nyu.edu
ZZZzz /,`.-'`'    -.  ;-;;,_		igor@watson.ibm.com
     |,4-  ) )-,_. ,\ (  `'-'		Igor Pechtchanski, Ph.D.
    '---''(_/--'  `-'\_) fL	a.k.a JaguaR-R-R-r-r-r-.-.-.  Meow!

"The Sun will pass between the Earth and the Moon tonight for a total
Lunar eclipse..." -- WCBS Radio Newsbrief, Oct 27 2004, 12:01 pm EDT