How do you guys use timers with bzm - Parallel Controller? The Timer value is being added.

[Richard Hill]

Happy new year all... 

Following on from a previous related post, How do you guys use timers with bzm - Parallel Controllers?

Using JMeter 5.6.3

Problem: The timer value is being added to the bzm - Parallel Controller duration.

Why do timers behave differently with Parallel Controllers compared to Transactions?

What is the correct approach to using timers with Parallel Controllers?

TestPlan:

Thread Group (1 User)

bzm - Parallel Controller

> Http Request

>> Constant Timer - 10 Seconds

Transaction Controller

> Http Request

>> Constant Timer - 10 Seconds

Note Durations in red.

jmx file:

<?xml version="1.0" encoding="UTF-8"?>
<jmeterTestPlan version="1.2" properties="5.0" jmeter="5.6.3">
  <hashTree>
    <TestPlan guiclass="TestPlanGui" testclass="TestPlan" testname="5.6.3 - Parallel Controller Test">
      <elementProp name="TestPlan.user_defined_variables" elementType="Arguments" guiclass="ArgumentsPanel" testclass="Arguments" testname="User Defined Variables">
        <collectionProp name="Arguments.arguments"/>
      </elementProp>
    </TestPlan>
    <hashTree>
      <ThreadGroup guiclass="ThreadGroupGui" testclass="ThreadGroup" testname="Thread Group">
        <intProp name="ThreadGroup.num_threads">1</intProp>
        <intProp name="ThreadGroup.ramp_time">1</intProp>
        <boolProp name="ThreadGroup.same_user_on_next_iteration">true</boolProp>
        <stringProp name="ThreadGroup.on_sample_error">continue</stringProp>
        <elementProp name="ThreadGroup.main_controller" elementType="LoopController" guiclass="LoopControlPanel" testclass="LoopController" testname="Loop Controller">
          <stringProp name="LoopController.loops">1</stringProp>
          <boolProp name="LoopController.continue_forever">false</boolProp>
        </elementProp>
      </ThreadGroup>
      <hashTree>
        <com.blazemeter.jmeter.controller.ParallelSampler guiclass="com.blazemeter.jmeter.controller.ParallelControllerGui" testclass="com.blazemeter.jmeter.controller.ParallelSampler" testname="bzm - Parallel Controller">
          <intProp name="MAX_THREAD_NUMBER">6</intProp>
          <boolProp name="PARENT_SAMPLE">true</boolProp>
          <boolProp name="LIMIT_MAX_THREAD_NUMBER">false</boolProp>
        </com.blazemeter.jmeter.controller.ParallelSampler>
        <hashTree>
          <HTTPSamplerProxy guiclass="HttpTestSampleGui" testclass="HTTPSamplerProxy" testname="HTTP Request1">
            <stringProp name="HTTPSampler.domain">example.com</stringProp>
            <stringProp name="HTTPSampler.port">443</stringProp>
            <stringProp name="HTTPSampler.protocol">https</stringProp>
            <boolProp name="HTTPSampler.follow_redirects">true</boolProp>
            <stringProp name="HTTPSampler.method">GET</stringProp>
            <boolProp name="HTTPSampler.use_keepalive">true</boolProp>
            <boolProp name="HTTPSampler.postBodyRaw">false</boolProp>
            <elementProp name="HTTPsampler.Arguments" elementType="Arguments" guiclass="HTTPArgumentsPanel" testclass="Arguments" testname="User Defined Variables">
              <collectionProp name="Arguments.arguments"/>
            </elementProp>
          </HTTPSamplerProxy>
          <hashTree>
            <ConstantTimer guiclass="ConstantTimerGui" testclass="ConstantTimer" testname="Constant Timer">
              <stringProp name="ConstantTimer.delay">10000</stringProp>
            </ConstantTimer>
            <hashTree/>
          </hashTree>
        </hashTree>
        <TransactionController guiclass="TransactionControllerGui" testclass="TransactionController" testname="Transaction Controller">
          <boolProp name="TransactionController.parent">true</boolProp>
          <boolProp name="TransactionController.includeTimers">false</boolProp>
        </TransactionController>
        <hashTree>
          <HTTPSamplerProxy guiclass="HttpTestSampleGui" testclass="HTTPSamplerProxy" testname="HTTP Request2">
            <stringProp name="HTTPSampler.domain">example.com</stringProp>
            <stringProp name="HTTPSampler.port">443</stringProp>
            <stringProp name="HTTPSampler.protocol">https</stringProp>
            <boolProp name="HTTPSampler.follow_redirects">true</boolProp>
            <stringProp name="HTTPSampler.method">GET</stringProp>
            <boolProp name="HTTPSampler.use_keepalive">true</boolProp>
            <boolProp name="HTTPSampler.postBodyRaw">false</boolProp>
            <elementProp name="HTTPsampler.Arguments" elementType="Arguments" guiclass="HTTPArgumentsPanel" testclass="Arguments" testname="User Defined Variables">
              <collectionProp name="Arguments.arguments"/>
            </elementProp>
          </HTTPSamplerProxy>
          <hashTree>
            <ConstantTimer guiclass="ConstantTimerGui" testclass="ConstantTimer" testname="Constant Timer">
              <stringProp name="ConstantTimer.delay">10000</stringProp>
            </ConstantTimer>
            <hashTree/>
          </hashTree>
        </hashTree>
      </hashTree>
      <ResultCollector guiclass="ViewResultsFullVisualizer" testclass="ResultCollector" testname="View Results Tree">
        <boolProp name="ResultCollector.error_logging">false</boolProp>
        <objProp>
          <name>saveConfig</name>
          <value class="SampleSaveConfiguration">
            <time>true</time>
            <latency>true</latency>
            <timestamp>true</timestamp>
            <success>true</success>
            <label>true</label>
            <code>true</code>
            <message>true</message>
            <threadName>true</threadName>
            <dataType>true</dataType>
            <encoding>false</encoding>
            <assertions>true</assertions>
            <subresults>true</subresults>
            <responseData>false</responseData>
            <samplerData>false</samplerData>
            <xml>false</xml>
            <fieldNames>true</fieldNames>
            <responseHeaders>false</responseHeaders>
            <requestHeaders>false</requestHeaders>
            <responseDataOnError>false</responseDataOnError>
            <saveAssertionResultsFailureMessage>true</saveAssertionResultsFailureMessage>
            <assertionsResultsToSave>0</assertionsResultsToSave>
            <bytes>true</bytes>
            <sentBytes>true</sentBytes>
            <url>true</url>
            <threadCounts>true</threadCounts>
            <idleTime>true</idleTime>
            <connectTime>true</connectTime>
          </value>
        </objProp>
        <stringProp name="filename"></stringProp>
      </ResultCollector>
      <hashTree/>
      <ResultCollector guiclass="SummaryReport" testclass="ResultCollector" testname="Summary Report">
        <boolProp name="ResultCollector.error_logging">false</boolProp>
        <objProp>
          <name>saveConfig</name>
          <value class="SampleSaveConfiguration">
            <time>true</time>
            <latency>true</latency>
            <timestamp>true</timestamp>
            <success>true</success>
            <label>true</label>
            <code>true</code>
            <message>true</message>
            <threadName>true</threadName>
            <dataType>true</dataType>
            <encoding>false</encoding>
            <assertions>true</assertions>
            <subresults>true</subresults>
            <responseData>false</responseData>
            <samplerData>false</samplerData>
            <xml>false</xml>
            <fieldNames>true</fieldNames>
            <responseHeaders>false</responseHeaders>
            <requestHeaders>false</requestHeaders>
            <responseDataOnError>false</responseDataOnError>
            <saveAssertionResultsFailureMessage>true</saveAssertionResultsFailureMessage>
            <assertionsResultsToSave>0</assertionsResultsToSave>
            <bytes>true</bytes>
            <sentBytes>true</sentBytes>
            <url>true</url>
            <threadCounts>true</threadCounts>
            <idleTime>true</idleTime>
            <connectTime>true</connectTime>
          </value>
        </objProp>
        <stringProp name="filename"></stringProp>
      </ResultCollector>
      <hashTree/>
    </hashTree>
  </hashTree>
</jmeterTestPlan>

[Richard Hill]

Added again so you can see it!