Re: [Gnuplot-info] gnuplot 4.0 / Ubuntu: Xorg uses a lot of CPU

[<br...@ph...>]

Thierry Baertschiger wrote:

> I have compiled gnuplut 4.0 on Ubuntu (5.10 Breezy) . Then when I use 
> gnuplot (with its terminal X), the Xserver (Xorg) works a lot (Intel 
> Xeon 2.8 GHz). It becomes actually hard to work with other applications.
[...]
> I use gnuplot since more than five years on linux and I have never had 
> this problem.

gnuplot 4.0 basically didn't change since its release almost 2 years 
ago.  Your Linux distribution did.  You guess whom that makes the more 
likely culprit...

> Does anybody know what's wrong ?

In the case we analyzed this, KDE is.  More particularly, the "klipper" 
process is interacting badly with gnuplot's way of handling the X 
cut'n'paste mechanism.  It turns that both KDE and gnuplot are acting in 
slight disagreement with the X11 recommendations for cut'n'paste, such 
that if you combine the two, klipper will spend excessive amounts of 
time asking the X server for the data gnuplot offered.

The next gnuplot release will probably fix this.