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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

Olaf Kock
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Giuseppe Percuoco
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1 Answers1

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

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More information: Using the JMeter Synchronizing Timer

Dmitri T
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  • Hi Dimitri, in the Synchronization Timer the fields "Number of Simulated User to Group By" and "Timeout in Millisecond", respectively what should I enter? in the "number of simulated .." the number of threads in the thread group? and in the "timeout in millisecond"? – Giuseppe Percuoco May 21 '21 at 08:50
  • `Number of Simulated User to Group By` - if you want to block all threads - it should be equal to number of threads in the thread group. `Timeout in Millisecond` - this is to protect you from infinite waiting in case if i.e. one thread fails and won't be able to join the others, I would put something reasonable, like maximum response time according to your SLA/NFR – Dmitri T May 21 '21 at 08:55