Using the Memory Page

The Memory page contains data about memory allocation, usage, and garbage collection over time.

This page displays information in both tables and graphs.

Using the Memory Page: Selections and Aspects

Use the drop-down menus at the top of the page to choose a selection and aspect if desired. Data from other pages can be saved to the selection drop-down menu by dragging an area of a chart (or selecting data from a table) and choosing Store Selection or Store Selection and Set As Focused Selection from the context menu.

The following controls provide additional behavior:

Show concurrent: Show all events concurrent to the selected aspect.
Contained: Only show events that are fully contained in the time range from the active selection aspect
Same threads: Only show events in threads related to the active selection aspect.
Time Range: Zoom to time range on relevant places on the page, or clear the time range zoom.

Using the Memory Page: Tables and Graphs

Table columns are labeled as follows:

Class: The fully qualified class name.
Max Live Count: An estimate of the maximum number of instances after garbage collection.
Max Live Size: An estimate of the maximum size of all instances after garbage collection.
Live Size Increase: The difference in total size from after the first garbage collection to after the last garbage collection.
Total Allocation: An estimate of the total allocation (not an exact value).

You can select any of the following to be displayed on the graph:

Garbage Collection: Pauses caused by garbage collection.
Total Allocation: An estimate of the total allocation (not an exact value).
Used Heap: Memory allocated by objects on the heap.
Heap Space: Committed Size: Size of the committed memory for the virtual space.
Heap Space: Reserved Size: Size of the reserved memory for the virtual space.
Used Size: Total amount of physical memory in use.
Total Size: Total amount of physical memory available to the operating system.
Live Size: Size of all instances after garbage collection.