Heap Walker View Settings Dialog

     


  The heap walker view settings dialog is accessed by bringing the heap walker to front and choosing View->View settings from JProfiler's main menu or clicking on the corresponding  toolbar button. The context menu also gives access to the view settings dialog.
  The General tab of the view settings dialog controls aspects which apply to all heap walker views.
  • Show selection steps
    If checked, the selection history window at the bottom of the heap walker is shown.
  • Show view helper dialog for new object sets
    If checked, the view helper dialog will be displayed when a new object set is created.
  The Classes tab applies to the classes view only. It is analogous to the recorded objects view settings.
  The Allocations tab applies to the allocation view only. It is analogous to the allocation call tree settings.

Note: Unlike for the allocation call tree, there is no "cumulate allocations" option since the view mode combo box in the allocations view of the heap walker offers both an "allocation tree" and a "cumulated allocation tree".

  The Biggest objects tab applies to the biggest objects view only.
  • Size scale
    You can select a size scale, just like in the recorded object view settings.
  • Show object IDs
    If checked, all objects are annotated with object IDs. This can help you to check if an object is the same as one displayed in another view.
  • Show retained size bar for dominator tree
    If checked, a percentage bar will be shown in from of each outgoing reference node. The percentage base can be configured as
    • Top level object
      The percentages refer to the retained size of the top level object. This is the default setting.
    • Total heap
      The percentages show how much of the total heap is retained by this reference. The lengths of all percentage bars are always comparable with this option.
  The References tab applies to the references view only.
  • Size scale
    You can select a size scale, just like in the recorded object view settings.
  • Show object IDs
    If checked, all objects are annotated with object IDs. This can help you in checking if two objects in two different reference graphs are the same or not. There are two separate options for the reference graph and the reference tree views since the object IDs are much more important for the tree views where this option is enabled by default.
  • Show declaring class if different from actual class
    In the incoming and outgoing reference tree views, the declaring class of a field will be displayed as well if it is different from the actual class or the object (i.e. the field has been declared in a super-class). Since this can add a lot of potentially distracting information to the reference trees, you can switch it off with this setting. In the reference graph, the declaring class is always displayed in the tool tip on the reference arrows.
  The Time tab applies to the time view only. It is analogous to the VM telemetry view settings dialog.