On Wed, Sep 24, 2008 at 10:52 AM, Erik Garrison <[EMAIL PROTECTED]> wrote: > Hello all, > > On tabbing we are currently auto-toggling the frame. Are we sure that > this is necessary? Could we include a configuration option to change > this?
I disagree that showing the Frame is a bad idea. It emphasizes the purpose of the top edge of the Frame, and provides context while tabbing so that it's easy to see where you want to "get to". > Drawing the frame animation during tabbing robs us of processor right > when we need it, slowing the perceived transition time between windows. Drawing the Frame does take a little effort, it's true. Compositing support should later speed this up a good deal. The current reveal/retraction rate of the Frame is at least 2x as slow as I'd like it to be, in practice. Additionally, there *is* a lag on switching windows, and this is, actually, part of the reason that I think the Frame should be shown. Without the Frame, we are forced to expose each window in the tabbing process, which injects delays into each tabbing event. With the Frame shown, we delay the actual window switch slightly so that it's possible to tab quickly past a few activities you're not interested in, pausing only at those that you want to see in more detail. > Furthermore, as the XO only has one processor the frame animation (which > requires available processor to run smoothly) will skip a lot of frames > if the processor is loaded. As we're auto-saving and re-rendering the > windows of every window we pass during tabbing, the processor is Saving and re-rendering...could you elaborate? As I mentioned, the point of using the Frame is to *minimize* the number of context switches that need to happen. - Eben > invariably quite loaded, and the frame draw consequently is quite > clunky. > > The attached patch to sugar optionally disables frame appearance if > the file /home/olpc/no-frame-on-tabbing exists. This is just a > proof-of-concept hack to make it easier to quickly enable and disable > the functionality and observe the performance change. > > I have created a trac ticket: http://dev.laptop.org/ticket/8633 > > Erik > _______________________________________________ > Sugar mailing list > [email protected] > http://lists.laptop.org/listinfo/sugar > _______________________________________________ Sugar mailing list [email protected] http://lists.laptop.org/listinfo/sugar
