The Memory Analysis tool

The main system allocator keeps track of statistics associated with allocating and freeing memory such that the memory statistics module can unobtrusively inspect any process's memory usage. To extract the most information from your program, launch it with the Memory Analysis tool enabled, and then your program will use the debug version of the malloc library (librcheck.so).

If your binary is instrumented with Mudflap, you can't run Memory Analysis on it because there will be a conflict (trying to overload the same functions), and it will cause the program to crash.