FastMM: Total Allocated Memory

Question

How could I get the total amount of memory, that allocated by FastMM?

I\'ve tried that:

function GetTotalAllocatedMemory: Cardinal;
var
  MMState: TM         


        

Answer 1

I also have faced this situation:

Anyways it returns something strange. It 5 times less than a value which I can see in Windows task manager. I believe that the amount of memory allocated by a Delphi application equals FastMM allocated memory plus some system overhead. Am I wrong?

and wasted several hours trying to find out where all the memory is. My app occupied 170 Mb according to Task manager but FastMM's stats was showing total size of allocated blocks ~13 Mb:

12565K Allocated
160840K Overhead
7% Efficiency

(excerpt from FastMM LogMemoryManagerStateToFile procedure output). Finally I realized that this enormous overhead is caused by FullDebug mode. It keeps stacktraces for every allocation so if you've many tiny memory blocks allocated (my app had UnicodeString x 99137, Unknown x 17014 and ~10000 of Xml objects) the overhead becomes frightening. Removing FullDebug mode returned memory consumption to its normal values.

Hope this help somebody.