TotalView Online Help : Chapter 2 Process Window : Thread Menu Commands : Thread > Step Instruction
Thread > Step Instruction
Steps the current thread over one assembler instruction. That is, TotalView executes one instruction in this thread. If the instruction contains a function call, TotalView steps into the function.
While this thread is being stepped, no other process executes.
 
NOTE >> These features are supported when your compiler used sprocs; for example, the MIPSpro OpenMP compiler.
For more information on processes and threads and their behavior while being stepped, see Group, Process, and Thread Control” in the “TotalView Users Guide”.