First, recognize Runtime Controller
Controlling the length of time which the sample is performed.
Set interface:
Runtime (seconds): running time, in seconds. That is under control sample execution for how long. Consistent with the duration of the effect thread group scheduler. Do not fill or 0, the sample will not be executed
Second, the use Runtime execution controller controls the sample under 2 seconds
Setting Runtime controller run time of 2, the same thread group set the default, then execute, you can see that a 2 seconds.
Third, the use of a thread group scheduler control sample run 3 seconds
Provided below, the same effect is reached the sample run 3 seconds
It is noteworthy that, if the thread group set duration, Runtime controller is also set run time, then take precedence over the thread group.