PCA provides support for analyzing the performance of Ada multi-
    tasking applications. The Collector SET TASKING command instructs
    the Collector to gather tasking information. PCA uses this
    information to associate other kinds of data with the task that
    caused that data to be gathered. The following nodespecs allow
    you to group the data by task, task type and priority:

       TASK BY TASK_IDENTIFIER
       TASK_TYPE BY TASK_TYPE_NAME
       TASK_PRIORITY BY nn PRIORITY_UNITS

    See PLOT for more information about plotting various kinds of
    data.

    Data may also be filtered based on tasking information (see the
    SET FILTER entry in HELP).