The debugger consists of two parts (main and kernel), to
    accommodate the debugging of multiprocess programs.

    o  For a program that runs in one process, a debugging session
       requires two processes instead of one.

    o  For a multiprocess program, a debugging session requires as
       many processes as are used by the program, plus an additional
       process for the main debugger.

    Under these conditions, several users who are simultaneously
    debugging programs can place an additional load on a system. The
    subtopics describe the resources used by the debugger so that you
    can tune your system for this activity.

    The discussion covers only the resources used by the debugger.
    In the case of multiprocess programs, you might also have to tune
    your system to support the programs themselves.