Tells to TotalView to hold or release the current process.
Hold means that you are telling TotalView that when you use a command that would run the threads in this process (such as a Group > Go), TotalView should ignore the command.
Release means that you are telling TotalView that the thread can execute when you use a run command such as Group > Go.
The Process > Hold Threads command can also hold. The description for that command describes the differences.
If the process is not currently held, this command stops and holds it. If it is currently held, this command releases it (but it does not continue the process—you must use a separate Go command for that).
For more information on processes and threads and their behavior while being stepped, see “Group, Process, and Thread Control” in the “TotalView Users Guide”.