Skip Headers
Previous
Previous
 
Next
Next

Memory Usage Graph

The Memory Usage graph shows how much of various types of memory the application consumed during the course of the recording. Table: Memory Usage Graph Field Descriptions lists the memory types measured.

Memory Usage Graph Field Descriptions

Field Description

Total Machine Physical Memory

The amount of physical memory available on the machine on which the JVM that was recorded was run.

Used Machine Physical Memory

The amount of physical memory in use on the machine at various times during the recording. This value not only includes the memory used by the JVM but also any other processes running on the machine.

Committed Heap

The actual amount of heap space used during the recording period.

Reserved Heap

The amount of heap available to the application. This value is set by the -Xmx command-line option.

Used Heap

The total size of the live objects on the heap; that is, how much of the heap is actually in use directly after a GC.


If you want to see a more detailed view of a specific section of the graph, you can zoom in by placing your pointer over the start point for the time range you want to see and, while holding down the left mouse button, drag to the right. The selected time range will appear in black on the graph. When you release the button, just the selected time range will appear on the graph and the Range Navigator reconfigures to show just the events in the selected time range. To zoom out, expand the range shown on the Range Navigator.