[Oberon] garbage collector

[Thomas Frey]

> Now sometime a mouse or key response delay of
> half a second occurs.
> 
> I'm guessing that  'forced' GC is often causing the delay  ?
Yes. Probably the Heap has become fragmented

> Is the heap off-on loaded to/from the hard drive ?
No, this is not done.
 
> I think the RAM is only 20 Mb.
> I did HyperDocs.ClearCache with no noticable improvement.
> Perhaps unloading unused modules ?
May help a little.

> Or is this done automatically ?
No. It can not be done automatically since the modules may contain a 
state that is used later again. (--> Commands)

--Thomas