JMeter synchronize all threads

Question

in Jmeter I have this situation:

• ThreadGroup(N-Tread, RumpUp=X sec)
  • Loop1 (n times)
    • JavaSampler1
  • Syncronize
  • Sleep
  • Loop2 (n times)
    • JavaSampler2

What I want is that once the thread group is started, I want all threads to block (syncronize) after doing Loop1. Once the threads are all synchronized and blocked I would like to start a "sleep" phase for X seconds and then restart them all together

Answer 1

Take a look at Synchronizing Timer and Flow Control Action Sampler combination, example implementation:

More information: Using the JMeter Synchronizing Timer