title: Set JMeter to start thread groups after 10 seconds
body: <p>I have a JMeter Test Plan setup with 15 different thread groups.  </p>
  
  <p>Each thread group contains different HTTP requests.</p>
  
  <p>Every thread group is setup to have only 1 user (number of threads) and not to loop,  So that all requests only run once.</p>
  
  <p>When I start the test to run I want JMeter to start the 1st thread group and then I want the 2nd thread group to start after 10 seconds. The 3rd to start after 20 seconds (from when the 1st one started) and so on.</p>
  
  <p>How can I set this up?  Ramp up period isn't the answer.</p>
  
  <p>Here are my thread groups: 
  <a href="https://i.stack.imgur.com/wgh5t.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/wgh5t.png" alt="enter image description here"></a></p>
  
  <p>I want the thread group Batch cs1 to start running the requests it has (each http request it has takes awhile to run, over minutes).  Then I want to wait 10 seconds and have thread group Batch cs2 to run.  Then I want to wait another 10 seconds and have thread group Batch cs3 to run, and so on until all thread groups have been started and running.
  Do I just have the test plan setup wrong?</p>