[Squeak-VMdev] global struct for Acorn makes 30% speedup :-)

[Tim R. <ti...@su...>]

Some time ago John released a changeset to put (most) globals into a
struct that imporves PPC performance by 10% or so (IIRC). I finally made
time to check it out for Acorn and with a few changes it improves
macroBenchmark performance by +30%. This makes me very happy.

I seem to remember Andreas finding that it slowed down the Windows vm,
so clearly it will have to be included in VMM in machine aware manner,
but 30% is not to be sneezed at. It's possible that the ARM winCE vm
might benefit from the change.

Nice day's work.

tim
-- 
Tim Rowledge, ti...@su..., http://sumeru.stanford.edu/tim
System going down at 1:45 for disk crashing.