General Development Discussions

Is there a way in OLT to specify the pace at which a transaction is run? for example, I've created three scripts, each performs a given user transaction. i would like to design a load test that runs all three simultaneously, one VU each. The first at a rate of 2/minute. The second two each at a rate of 0.6/minute.
My past experience is with LoadRunner and that product allows you to do this. It is very helpful in trying to simulate a real-life user load. "X" users, each performing a certain transaction at a certain rate.

Thanks!