B4J Question Java HeapSpace: Why does it only grow?

[KMatle]

I never took a look at the used memory of my B4J apps nor had any problems, but... In one of my apps I insert 5 Mio rows into a Sqlite DB and the heap space grows to the given max. value. So far, so good.

My question: What exactly consumes the memory? And how do we free it? In the task manager it looks more than a memory leak because the memory usage grows and stops when the app isn't doing anything but never frees a single byte.

As I've said, not a problem but I would like to know if there's a way to free the memory (the www doesn't help me here).

 

[keirS]

The JVM doesn't necessarily return unused heap space back to the OS. There is no way to force it to AFAIK. However there are ways to encourage it to. See here: https://stopcoding.wordpress.com/2010/04/12/more-on-the-incredible-shrinking-jvm-heap/

 

[Erel]

I recommend you to let the VM handle the memory. You should only be concerned if the memory usage continue to grows and eventually an out of memory error happens. In that case there is a memory leak in your program.