Hi, Since Sugar was ported from GTK2/pygtk to GTK3/pygobject3, the desktop and apps are considerably slower to launch. I'm trying to correct this. You can see at least part of this slowdown by timing the following 2 programs:
1. import gtk 2. from gi.repository import Gtk cProfile shows that the biggest obvious offender is the getattr implementation of IntrospectionModule, eats up quite a bit of CPU time. To get a feel for whether this would speed up if it were written in C, I started to move the code into the _gi module. After starting to do this, I think the answer is definitely yes. Most of its work is getting basic info from GI and in order to that it crosses the Python-C barrier many times, and all of the GI elements are wrapped in their own python objects, etc. If it were all done in C and just called into GI directly things would be faster and more direct. I would be interested in finishing this work and the translation is not that difficult, but I want to ask for some opinions first. Would this kind of code movement be accepted? Another consideration is how far to go. getattr instantiates GObjectMeta objects and things like at. At first I would leave GObjectMeta this in Python but we can measure later, maybe that would also benefit from being done in C. Daniel _______________________________________________ python-hackers-list mailing list python-hackers-list@gnome.org https://mail.gnome.org/mailman/listinfo/python-hackers-list
