I'm trying to simplify the implementation of stochastic performance testing using jmeter. We have done this before, but its takes to much time.
The thing is, if i have the amount of concurrent users (based on total visits and elapsed times), i assume that the elapsed time will not change. But, if during an stress situation the server takes more than expected, the users will stack up, because some users will not leave in the expected time. Therefore, the real concurrence will be different than calculated.
A traditional test will keep the pre established virtual users (it doesn't matter if increases or not ), even if the elapsed times increases due to server slower response. If the server responses are slower, jmeter will do less iterations. I don't want to do that, i want to create more threads if necessary in order to keep the arrival rate.
Is there any way i can set user arrivals rate instead on constant threads over time?