I am running one instance of JMeter (non-gui) on a quad core host and notice that the JMeter process is tied to 1 core at 90+% cpu. What I'd like to do is to lower CPU% to 80% but running on two cores to increase the load.
Does this mean I just start two JMeter instances in non-gui mode? Can both
instances write to the same result file (so I don't have to merge them when
done). Any pit falls to this approach?
Thanks in advance.

