HPjmeter 4.3 User's Guide

Related Topics
• Allocation Site Statistics (page 185)
• Mark an Item for Search (page 203)
• Find a Search Pattern (page 204)
Live Objects (Count)
The number of live objects presented by object types. Live objects are those that could be accessed
through a chain of references from the set of program variables when the heap dump took place.
Related Topics
• Mark an Item for Search (page 203)
• Find a Search Pattern (page 204)
Live Objects (Bytes)
The number of bytes occupied by live objects of a given type, presented by object types.
Related Topics
• Mark an Item for Search (page 203)
• Find a Search Pattern (page 204)
Live Array Sizes
The list of all live arrays remaining in the heap, sorted by their size.
Related Topics
• Mark an Item for Search (page 203)
• Find a Search Pattern (page 204)
Unfinalized Objects
The number of objects with pending finalization, arranged by their type and sorted by the number
of objects of each type. These are all objects with the finalize() method available, but not yet
invoked.
Related Topics
• Mark an Item for Search (page 203)
• Find a Search Pattern (page 204)
• Threads Histogram (page 175)
• Unfinalized Objects (page 144)
• Unfinalized Queue Growth (page 133)
Reference Graph Tree
Shows all live objects and references between them.
Expanding the nodes shows which references a given object holds.
HPjmeter uses heuristics to detect soft or weak references and uses special symbols ~-> for them,
while the hard (regular) references are marked by ->. Double-click on an object to view additional
information: all references to the object, and the number of bytes held in the heap by this object.
This number is the total amount of bytes that could be reclaimed by garbage collection if all
references to this object were nullified. This piece of information is sticky — once this value is
calculated for an object, it will be displayed in the Reference Graph.
Using Profile Displays 169