[Etoys] Performance improvements form 3.9 (backported) #1

[Marcus Denker]

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...


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     Marcus