Hi,
attached are some changeset that are in 3.9 which might help a little with perfomance...
I have no idea how to properly benchmark this... but starting up the image, run the eToy macrobenchmark. Then I filed in all the changesets and ran the benchmarks again.
Result (MacBook pro, Squeak 3.8.12beta5U):
Before: #960 memory=20464928 display=1012x700x16 painter=214.8 viewer=186.4 scriptor=139.4 category=232.6 After: #960 memory=22901456 display=1012x700x16 painter=185.4 viewer=173.4 scriptor=132.8 category=214.8
The changesets have been checked and fixed against OLPC-Squeak- latest.zip as downloaded today.
More to come later...
Marcus