What's the best approach for testing performance? I need to load test to find bottlenecks. The type of stress I want to create is multiple threads in a webapp (something I expect). How can I monitor a [simulated] heavy load?
I just downloaded JMeter but I found that version 1.8 requires Java 1.4. I have only 1.3.1 because Apple decided not to upgrade their version of Java. Which version do you use? How effective are earlier versions?