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Re: Speed Problems with Xfree


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  • From: Norbert Nemec <address@hidden>
  • To: address@hidden
  • Subject: Re: Speed Problems with Xfree
  • Date: Wed, 10 Sep 2003 18:36:12 +0200

I don't think so. I have a fast machine with much memory. Anyway, I can still
see that the TeXmacs window has to be redrawn at every desktop-switch.
Obviously, the window is not buffered.

As far as I know from programming the Xlib a long time ago, there is a simple
option to decide whether a window gets a background buffer or not. Using such
a buffer might boost the screen diplay of TeXmacs quite a lot. Unfortunately,
the user can't do much about this. It would have to be done in the source
code.

Ciao,
Nobbi

Am Mittwoch, 10. September 2003 17:02 schrieb David Allouche:
> On Fri, Aug 08, 2003 at 11:45:19AM +0200, Marten Bauer wrote:
> > when I use texmacs I always have got the same problem that for example
> > the Desktop Switching from KDE ist very slow. Is there are problem with
> > texmacs and xfree? The CPU usage is low but the switching from one to the
> > other desktop ist very very slow.
> >
> > Any idea?
>
> Maybe this is a low memory condition.
>
> When memory is low, the background image of KDE is swapped off to the
> disk. Afterwards, when switching workspaces, it takes a few seconds
> for the background pixmap of the new workspace to be read back to
> memory. During this delay CPU usage stays low because the delay is
> disk-bound.
>
> But then this is not a texmacs-specific issue. Using the "System
> Monitor" KDE applet to monitor CPU, RAM and swap usage may help
> identifying such a condition.

--
______________________Norbert Nemec <address@hidden>

Universität Erlangen-Nürnberg, Germany
Institut für Theoretische Physik III
Staudtstr. 7 ... D-91058 Erlangen ... Room No. U1.526
Tel: +49 9131 / 85-28816 ... Mobile: +49 179 / 7475199



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