9.1 Proposal: Top five performance problems
Marco Pesenti Gritti
mpgritti at gmail.com
Thu Oct 23 19:56:47 EDT 2008
Problems and ideas in no particular order.
* Sugar shell startup is too slow.
Reduce dependencies, single process shell, modularize and delay
initialization of components which are not immediately necessary,
measure constantly to avoid regressions and monitor progress.
* Icons rendering is slow and uses too much memory.
Cache svg icon on disk pre-rendered and mmap them, render colored
icons using a mask per color, user server side pixmaps to speed up
rendering of some of the icons.
* Activity startup is ridiculously slow.
Design an API incompatible Activity class. Start from a very basic
window and add functionalities on the top of it, trying to not regress
startup time. Make sure that launcher feedback does not slow down
* Browse performance and memory usage.
Investigation to do here. I'm hoping to have more concrete data by the 17 Nov.
* The frame is too slow to appear and disappear.
Experiment with pixmap caching. Is an empty frame fast enough?
Composite the active window and the frame.
More information about the Devel