hi; On 20 May 2012 14:59, Weng Xuetian <wen...@gmail.com> wrote: > I'm implementing an extension that may need to update a window very > frequenctly, say maybe 10 times per second. (Please don't ask about reducing > the frequency, this is based on an very rapid user input and it need to be > updated in time to give user correct reaction.)
the Shell is vblank-locked: it will only redraw itself following the refresh rate of your screen. also, remember that triggering a redraw of a portion of the scene graph will result in a redraw of more things than just the portion of the graph you own. > I wonder do I do anything wrong, or there is some hint for render it in better > performance? you seem to be under the impression that "better performance" means "lots of frames per second even if you can't physically seem them". that is not the case. ciao, Emmanuele. -- W: http://www.emmanuelebassi.name B: http://blogs.gnome.org/ebassi/ _______________________________________________ gnome-shell-list mailing list gnome-shell-list@gnome.org http://mail.gnome.org/mailman/listinfo/gnome-shell-list