SHALLOW HEAP和RETAINED HEAP

概念

• SHALLOW HEAP：对象自身占用的内存大小；

Shallow heap of an object is its size in the memory.

• RETAINED HEAP：对象能够被回收的内存大小，包括了直接引用和间接引用占用的内存；

Retained heap is the amount of memory that will be freed when the particular object is garbage collected

参考：

1. https://blog.gceasy.io/2019/01/03/shallow-heap-retained-heap/