LoadRunner is a suite of applications designed specifically for performance testing of computer systems.
Put at a very high level, LoadRunner is used to throw load (or Virtual Users in LoadRunner terms) at a system to check for performance counters such as throughput, CPU per transaction etc. LoadRunner supports a variety of different architectures including Web, ERP, CRM and more.
This article details the steps of how to set-up multiple load generators to work with your LoadRunner Controller environment.
There are several drivers for going with this approach:
- Your load generator may actually sit on the same box as your Controller (design flaw)
- Your load generator may be a low spec box which maxes out at X number of VUsers
- You want load to hit the target from multiple machines to introduce threading.