On Mon, 2003-08-25 at 00:59, Marek Habersack wrote: > On Mon, Aug 25, 2003 at 12:31:32AM +0200, Michel DÃnzer scribbled: > > > > The x11perf is just for comparison with some model system, I presume. > > > > If the bandwidth to the framebuffer is low, that may explain at least > > some of the slowness you're seeing (apps using the RENDER extension slow > > to handle expose events). > A comment in metacity code states that it uses the pixmap backstore to avoid > handling the expose events.
The same unused code for the minimize effect? :) Or for the decorations maybe? Again, the window manager doesn't draw the app window contents for all I know... > Is it possible that the pixmap -> surface blit might be causing the > slowness because of a 2D acceleration bug in the radeon driver? Unlikely. BTW, using this technique (pixmap as window background) is recommended by Mr. XAA Mark Vojkovich himself as an optimization to avoid expose events. > > I can't seem to tell much difference between metacity and sawfish > > here (except that opaque window resizing works much better with > > metacity :), YMMV. > You mean the stroboscope effect? :) What's that? :) I mean it's snappy with metacity. -- Earthling Michel DÃnzer \ Debian (powerpc), XFree86 and DRI developer Software libre enthusiast \ http://svcs.affero.net/rm.php?r=daenzer
