HPjmeter 4.2 User's Guide

The estimation entirely misses the arrays, and may report inaccurate numbers. Some of the calls
to constructors may remain unprofiled, or be not recognized as such by HPjmeter. It is also
possible to err on the plus side, when HPjmeter does not properly recognize the class hierarchy.
These metrics – Reference Graph Tree, Reference Sub-tree by Size, Residual Objects (Count), and Residual
Objects (Bytes) – show the residual objects. These are objects remaining on the heap at the time
the profile data file is written.
Objects Created by Method
Number of objects of all types created by each method. Double click on the method name to see
the distribution of the number over object types.
Related Topics
• Mark an Item for Search (page 178)
• Find a Search Pattern (page 179)
Created Objects (Count)
Number of objects of a given type, created by all methods, presented by object types. Double
click on the object type to see which methods created the objects.
Related Topics
• Mark an Item for Search (page 178)
• Find a Search Pattern (page 179)
Created Objects (Bytes)
Number of bytes occupied by objects of a given type, created by all methods, presented by object
types. Double clicking on the type name provides a list of allocation sites (methods) with the
number of bytes allocated by each listed method.
Related Topics
• Allocation Site Statistics (page 161)
• Mark an Item for Search (page 178)
• Find a Search Pattern (page 179)
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 178)
• Find a Search Pattern (page 179)
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 178)
• Find a Search Pattern (page 179)
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 178)
• Find a Search Pattern (page 179)
Using Profile Displays 145