Package org.apache.jmeter.timers

Class SyncTimer

java.lang.Object
org.apache.jmeter.testelement.AbstractTestElement
org.apache.jmeter.timers.SyncTimer
All Implemented Interfaces:
Serializable, Cloneable, Searchable, TestBean, org.apache.jmeter.testelement.TestElement, TestStateListener, ThreadListener, Timer
public class SyncTimer extends AbstractTestElement implements Timer, Serializable, TestBean, TestStateListener, ThreadListener
The purpose of the SyncTimer is to block threads until X number of threads have been blocked, and then they are all released at once. A SyncTimer can thus create large instant loads at various points of the test plan.
See Also:

  • Constructor Details

    • SyncTimer

      public SyncTimer()

  • Method Details

    • getGroupSize

      public int getGroupSize()
      Returns:
      Returns the numThreads.

    • setGroupSize

      public void setGroupSize(int numThreads)
      Parameters:
      numThreads - The numThreads to set.

    • delay

      public long delay()
      This method is called after a sampling process is done to know how much time the sampling thread has to wait until sampling again.
      Specified by:
      delay in interface Timer
      Returns:
      the computed delay value.

    • clone

      public Object clone()
      We have to control the cloning process because we need some cross-thread communication if our synctimers are to be able to determine when to block and when to release.
      Specified by:
      clone in interface org.apache.jmeter.testelement.TestElement
      Overrides:
      clone in class AbstractTestElement

    • testEnded

      public void testEnded()

      Called once for all threads after the end of a test. This will use the same element instances as at the start of the test.

      N.B. testStarted() and testEnded() are called from different threads.

      Specified by:
      testEnded in interface TestStateListener
      See Also:

    • testEnded

      public void testEnded(String host)
      Reset timerCounter
      Specified by:
      testEnded in interface TestStateListener
      Parameters:
      host - name of host
      See Also:

    • testStarted

      public void testStarted()

      Called just before the start of the test from the main engine thread. This is before the test elements are cloned. Note that not all the test variables will have been set up at this point.

      N.B. testStarted() and testEnded() are called from different threads.

      Specified by:
      testStarted in interface TestStateListener
      See Also:

    • testStarted

      public void testStarted(String host)
      Reset timerCounter
      Specified by:
      testStarted in interface TestStateListener
      Parameters:
      host - name of host
      See Also:

    • threadStarted

      public void threadStarted()
      Description copied from interface: ThreadListener
      Called for each thread before starting sampling. WARNING: this is called before any Config test elements are processed, so any properties they define will not have been merged in yet. See org.apache.jmeter.threads.JMeterThread#threadStarted()
      Specified by:
      threadStarted in interface ThreadListener

    • threadFinished

      public void threadFinished()
      Description copied from interface: ThreadListener
      Called for each thread after all samples have been processed. See org.apache.jmeter.threads.JMeterThread#threadFinished(org.apache.jmeter.engine.event.LoopIterationListener)
      Specified by:
      threadFinished in interface ThreadListener

    • getTimeoutInMs

      public long getTimeoutInMs()
      Returns:
      the timeoutInMs

    • setTimeoutInMs

      public void setTimeoutInMs(long timeoutInMs)
      Parameters:
      timeoutInMs - the timeoutInMs to set