1.2 Information on Memory

Heap Usage
Field	Explanation
Threshold	Heap size when next automatic garbage collection takes place. Gets recomputed after every garbage collection.
Size	Current heap size.
Active Size	Heap size after last garbage collection.
	Displays the three values from above.
Heap Parameters
Field	Explanation
Minimal Size	Minimal heap size.
Free	Gives the percentage of free heap memory after garbage collection. For example, a value of $75$ means that the heap threshold is set to approximately: $\mbox{Active Size} * 100/(100-75)$ that is: $\mbox{Active Size} * 4.$
Tolerance	Gives the percentage by which the system is allowed for purposes of better memory allocation to increase the heap threshold.
Garbage Collector
Field	Explanation
Active	Whether garbage collection is invoked automatically.