> -----Original Message----- > From: gtk-list-bounces@xxxxxxxxx > [mailto:gtk-list-bounces@xxxxxxxxx] On Behalf Of Michael Torrie > > To be specific, redrawing is slow. Moving from a terminal to X with > > Alt-Ctrl-F7 it takes a couple of seconds for all the > widgets to redraw > > themselves. > > This is a very interesting observation. It illustrates greatly the > principle of perceived speed vs real speed. In this case the > perceived speed is bad, but the real speed is actually quite > acceptable. For example, under windows XP if all windows were forced > to redraw simultaneously, I've seen this exact same thing. On Windows there are two similar operations, using Alt-tab to move between applications and pressing the "desktop" button which minimizes all windows. On my machine both of these are much faster, taking much less than a second. BTW I don't think Alt-Ctrl-F7 does cause all windows to redraw, I think it only causes the visible ones to redraw, but I'm not sure. > As we transition X11 to the new > OpenGL-backed technology, we won't see this problem you describe > anymore. A switch from text to graphics console and everything will > be restored fairly instantly because each window has its own OpenGL > backing store offscreen that is instantly composited onto the screen > by the high-speed video card operations. In this case, everything, > including GTK seems an order of magnitude faster, when in fact GTK is > the same speed as it was before. That will be good. > Thus for your application's speed criteria, this example you mentioned > of gnome's slowness is not valid. I remain to be convinced, I'll compare the speed of some apps more carefully. > That said, > perceived speed is very important to the end user and I think GTK does > a pretty good job. > Certainly I've not noticed any lag under normal circumstances for > several years now. I'm using very complicated gnome apps including > evolution, gimp, gaim, galeon, and inkscape. > > In any event, I find gtk2 apps to run very well even on 64 MB, 200 MHz > machines. Just don't expect a heavy desktop to be acceptable. XFCe > is light enough that even complicated > gtk2 apps run quite well. I'll try it. _______________________________________________ gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list
