B4J Question WebApps & JMeter

I finally have been able to get JMeter working and I have been playing around with it yesterday (emphasis on 'playing' ). My test is suspiciously simple (see attachment script) and with 2500 'users', I can still comfortably work with my WebApp so I will probably miss something important. (the hardware running the webapp is not state-of-the-art, running an Ubuntu 16.04 server)



1. Is there anyone with some experience with creating a good stress test script in JMeter (https://jmeter.apache.org/) for jServer WebApps? Preferable for a WebApp using websockets.
2. And, how does one interpret the results?

If some JMeter guru could put together some small 'getting started' tutorial, that would be great!

Alwaysbusy