How to track the memory usage in C++

+1 A:

You could overload ::operator new to track the memory usage (normally, everything else goes through this).

Jerry Coffin 2010-05-13 20:42:56

Don't forget `::operator new[]` ;-)

FredOverflow 2010-05-13 21:27:52

@Fred: oh, couldn't I, please?

Jerry Coffin 2010-05-13 21:35:16

+1 A:

http://www.paulnettle.com/ click "code" then "MMGR" then the graphic that says "CODE" in red letters.

MMGR drops into your project. Include it in any source files where you want comprehensive memory tracking and it does the rest. It really is quite amazing despite the uselessness of his website.

dash-tom-bang 2010-05-13 20:46:24

In the header comments it says "Best viewed with 8-character tabs and (at least) 132 columns". I'm not sure whether to laugh or cry.

Troubadour 2010-05-13 20:52:55

I just tried this on Linux and it doesn't compile cleanly with gcc 4.3.2. To get it working remove the `stdafdx.h` include and prefix `new_handler` with `std::` in mmgr.cpp. Also include `<cstddef>` in mmgr.h to get `size_t`.

Troubadour 2010-05-13 21:19:34

Yeah it's not beautiful but it does what it advertises. I don't work on "traditional" platforms so I'm not used to stuff working out of the box. ;)

dash-tom-bang 2010-05-13 21:26:45

A:

You could try my experimental heap debugger ;-)

FredOverflow 2010-05-13 20:59:37

+1 A:

Valgrinds module massif is exactly what you are looking for.

http://valgrind.org/docs/manual/ms-manual.html

Let_Me_Be 2010-05-13 21:14:43

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How to track the memory usage in C++

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