Often software developers get to ask themselves the question: Should I just run the tests in the GUI now that I finished developing them?
The answer is pretty simple, NO. You should not use the GUI when running the tests. The GUI should be used only for developing the tests.
For running the tests you should run JMeter from command line. Use the GUI only for Test creation and Test debugging.
For load testing, use CLI Mode (was NON GUI):
jmeter -n -t [jmx file] -l [results file] -e -o [Path to web report folder]
LoadFocus is cloud Performance, load and stress testing tool which provides the infrastructure and the ability to run all these tests in less than a few minutes, keep history of the results, compare different runs to inspect performance improvements or performance degradation.