Malloc statistics?

[Jason]

Greetings,
Is there a reliable and portable way of getting malloc statistics within
a running C program? I have tried to use the mallinfo() command, but it
isn't portable (reports different things on linux and HP), and Purify
reports memory access violations with it.

At any given point in a program, I would like to grab total used memory
for the process. Does anyone have a good way of doing this?
Thanks
Jason

 

[Richard Heathfield]

Greetings,
Is there a reliable and portable way of getting malloc statistics within
a running C program? I have tried to use the mallinfo() command, but it
isn't portable (reports different things on linux and HP), and Purify
reports memory access violations with it.

At any given point in a program, I would like to grab total used memory
for the process. Does anyone have a good way of doing this?

I use a malloc wrapper (wot I wrote myself) which writes memory usage
information to a log file for later analysis. You could use a similar
technique to track memory usage in a way accessible to your program.

You might want to make it a macro, so that you can easily switch between a
statistics-enabled version and a no-nonsense version (if you'll forgive the
expression).