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I installed Slack 12.1 recently and I've been trying to decide which WM to use and such. I like XFCE and Openbox, and I'm leaning toward openbox for a simple base. I also tried out compiz swapped in for xfwm4 just to try out some of the effects. I want to try using openbox with xcompmgr for transparency, but it's really slow!
If I run glxgears in fluxbox or xfce plain, I get over 15000 fps.
...in xfce with compiz I get about 8000 fps.
...in fluxbox or xfce with xcompmgr I get between 700 and 1500 fps!
...in xfce with xfwm4's compositing enabled I get 700 to 1500 fps also.
Isn't xcompmgr supposed to be a very basic compositor? It should at least be faster than compiz, right?
I have an nvidia 7900gs running on the latest nvidia driver. My xorg.conf contains:
Xcompmgr is just a different compositing manager. Compiz uses OpenGL and faciliates a certain X-feature which hadn't been around when the xcompmgr was developed. Xcompmgr was only meant to be kind of a case study to show what's actually possible with compositing. It works differently.
And so does Metisse, KDE 4, Metacity and Xfce - they all implemented their own stuff, so you might experience different levels of stability and speed.