The heap snapshot tool for Android performance specific testing

Speed Up your app

What can Heap snapshot do?

Get Java heap memory details to analyze memory leak issues

Heap Dump Startup

In the memory bread, click on the red button in the graph to display our heap snapshot bread

Heap Snapshot Panel

Heap Snapshot Details Panel

There are three types of information available in this panel: app Heap/image heap/zygote heap.
Represents the app heap memory information, image heap memory information, zygote process heap memory information, respectively.

Area A

Lists all the classes in the heap memory, which are listed in the list name:

name	meaning
Total Count	The number of objects in this class in memory
Heap Count	The number of objects in this class in heap memory
Sizeof	Physical size
Shallow size	The object itself occupies memory size
Retained Size	The amount of memory saved after releasing the object

Area B

When we click on a class, the B area on the right shows the instantiated object for that class, which shows how many entities, along with details.

name	meaning
Depth	Depth
Shallow Size	Object itself memory size
Dominating Size	The size of the memory that governs

When you click on an object, it expands which objects are contained within the object, and the C region also shows which objects refer to the object:

C Zone

An object refers to a tree object, where it can be seen that there is no reference to it, such as in the memory leak, you can see that it is referenced by whom, for example, the first row of the reference tree, you can see that the object is object[12] object reference, the index value of 1, then we expand, you can see, the object[12] is a ArrayList.

Updates for Android studio1.4

1.4 of the panels have some changes:

A selection of data display methods is added, with the choice of class name arrangement or package name arrangement:

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The heap snapshot tool for Android performance specific testing