Hi!

My development image has grown over the last 2 years from about 20 MB to 
almost 60 MB now. I finally got around to examine the cause of this 
growth.

I did a SpaceTally on the image. ByteString, Array and Bitmap together 
consume about 35% of the memory with thousands of instances. Not a good 
starting point to dig deeper. 

Much more unusual seemed to be th 310957 instances of Point, the 22373 
instances of EventHandler, the 6554 instances of Browser and finally the 
10 WhiskerWindow instances.

WhiskerWindow is where I started with. I got hold of the instances and 
followed their pointers to the root. All except the last one (beeing the 
one opened) led to the class variable ActionMaps in EventManager. That map 
holds currently 8917 entrys. Not surprisingly most of them are Browser 
instances.

Now the big question is, how can I get rid of them. Shouldn't they be 
garbage collected at some point because the keys are weakly held on? And 
how can I prevent it from happening again?

Martin