Releasing Memory and Virtual Memory

[Ben Rubinstein]

Notwithstanding that Derek's case seems actually have been different: I 
certainly have run afoul of this problem, that there is no garbage collection 
until a handler ends, in a similar situation: a script where image objects 
were created and deleted, when given a large enough job on a machine with 
small enough memory, caused the app to crash.

http://quality.runrev.com/qacenter/show_bug.cgi?id=6791

There are certainly ways this behaviour could be improved, without impairing 
performance.

Ben