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

[Andreas Raab]

Thanks Marcus! If anyone else has other improvements (in particular ones 
that are as nicely isolated as those that Marcus just sent around) 
please let us know. Every little bit counts for OLPC and getting half a 
percent point here and there will make a difference in the end.

Cheers,
   - Andreas

Marcus Denker wrote:
> 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
> 
> 
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