The graph is pretty flat, which indicates the test is not really putting any stress on your server. The load added does not make much of a difference for improvingtheweb.com. One thing we need to put more effort in, I think, is to communicate these things. What can you learn from a graph, what are the prerequisites for getting good test results (in this case, more load would be a good thing).

I think there is a lot we need to do to explain things better. That is the most difficult part of all.