Information Types

While all information is interesting, the data in the heap column is the most interesting as that is the column containing information that you can control. Here are the kinds of information with Memory Usage reports:

Text

The amount of memory your program uses to store your program’s machine code instructions.

Data

The amount of memory your program uses to store uninitialized and initialized data.

Heap

The amount of memory your program is currently using for data created at runtime.

Stack

The amount of memory used by the currently executing routine and all the routines in its backtrace.

If you are looking at a multithreaded process, MemoryScape only shows information for the main thread’s stack.

The stack size of some threads does not change over time on some architectures. On some systems, the space allocated for a thread is considered part of the heap.

Stack Virtual Memory

The logical size of the stack. This value is the difference between the current value of the stack pointer and the value reported in the Stack column. Also, this value can differ from the size of the virtual memory mapping in which the stack resides.

Total Virtual Memory

The sum of the sizes of the mappings in the process's address space.