title: JMeter differences between stop test and stop test now radio boxes in Thread Group
body: <p>Reading the manual I have a question:
  In Thread Group, what is  the differences between "Stop Test" and "Stop Test Now" radio boxes.
  I don't understand reading the jmeter guide which says:</p>
  
  <ul>
  <li>Stop test: Stop test (all threads) if sampler error occurs</li>
  <li>Stop test now: Stop test NOW (all threads) if sampler error occurs</li>
  </ul>