gnuplot-info

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

[Thierry B. <ti...@in...>]

Hello !

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.

Note that the problem appears as soon as gnuplot open its X terminal and 
doesn't depend on the amount of data which has to be plotted.  It 
disappear as soon as  I destroy the window.

I use gnuplot since more than five years on linux and I have never had 
this problem.

Does anybody know what's wrong ?

Thierry

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.

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

[Thierry B. <ti...@in...>]

I have killed klipper and now everything is fine ! 
thanks !

Hans-Bernhard Bröker wrote:

> 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.
>