Xan has been measuring gtk+ performance on ARM using some different gtk+ flavours:
- maemo-gtk (2.6)
- stock gtk+ 2.10 + stock cairo
- gtk+ 2.10 patched to use XFT for text rendering
- gtk+ 2.10 + cairo patched to use the magic number tecnique for the fixed_from_double
Interesting results. Read it: Gtk+ Performance Measurement (I)