The Heap Analyzer provides a graphical representation of memory
    use in real time. This allows you to quickly identify inefficient
    memory usage in your application such as allocations that are
    made too often, memory blocks that are too large, fragmentation,
    or memory leaks.

    For details on running the Heap Analyzer from within the
    debugger, see the HP OpenVMS Debugger Manual.

    On OpenVMS I64, the standalone Heap Analyzer is started within
    the kept debugger using the START HEAP_ANALYZER command (see
    example).

    On OpenVMS Alpha, the standalone Heap Analyzer is started within
    the kept debugger using the RUN/HEAP command.

    On OpenVMS VAX, the standalone Heap Analyzer is started by
    entering the following commands:

    $ DEFINE/USER/NAME=CONFINE LIBRTL SYS$LIBRARY:LIBRTL_INSTRUMENTED
    $ RUN/NODEBUG program