Reference
</br>
What it is
The Stepping Thread Group lets us:
- Determine the same parameters as the standard Thread Group
- Increase thread load by portions
- Configure hold target load time
- Decrease load by portions.
</br>
Example
scenario:
- 1,000 threads as target load
- 0 seconds waiting after the test starts
- 0 threads run at the immediate beginning of the test
- 100 threads are added every 30 seconds with a ramp-up (or step transition time) of 10 seconds
- The target load is held for 300 seconds (5 minutes)
- Finally, 10 threads are stopped every 3 seconds.
This means that:
- The test begins immediately when JMeter starts, since there is 0 seconds waiting.
- Every 30 seconds 100 users will be added, until we reach 1,000 users. The first step is 1-100, the second 101-200, etc., because we defined 0 threads to run at the beginning. If we defined 50 threads to run the first step would be 51 - 150, the second 151 - 250, etc. and the test would be completed faster.
- It will take each of the steps (with 100 users each) 10 seconds to complete. After that JMeter waits 30 seconds before starting the next step.
- After reaching 1,000 threads all of them will continue running and hitting the server together for 5 minutes.
- At the end, 10 threads will stop every 3 seconds.
<?xml version="1.0" encoding="UTF-8"?>
<jmeterTestPlan version="1.2" properties="3.1" jmeter="3.1 r1770033">
<hashTree>
<TestPlan guiclass="TestPlanGui" testclass="TestPlan" testname="测试计划" enabled="true">
<stringProp name="TestPlan.comments"></stringProp>
<boolProp name="TestPlan.functional_mode">false</boolProp>
<boolProp name="TestPlan.serialize_threadgroups">false</boolProp>
<elementProp name="TestPlan.user_defined_variables" elementType="Arguments" guiclass="ArgumentsPanel" testclass="Arguments" testname="用户定义的变量" enabled="true">
<collectionProp name="Arguments.arguments"/>
</elementProp>
<stringProp name="TestPlan.user_define_classpath"></stringProp>
</TestPlan>
<hashTree>
<kg.apc.jmeter.threads.SteppingThreadGroup guiclass="kg.apc.jmeter.threads.SteppingThreadGroupGui" testclass="kg.apc.jmeter.threads.SteppingThreadGroup" testname="jp@gc - Stepping Thread Group" enabled="true">
<stringProp name="ThreadGroup.on_sample_error">continue</stringProp>
<stringProp name="ThreadGroup.num_threads">1000</stringProp>
<stringProp name="Threads initial delay">0</stringProp>
<stringProp name="Start users count">100</stringProp>
<stringProp name="Start users count burst">0</stringProp>
<stringProp name="Start users period">30</stringProp>
<stringProp name="Stop users count">10</stringProp>
<stringProp name="Stop users period">3</stringProp>
<stringProp name="flighttime">300</stringProp>
<stringProp name="rampUp">10</stringProp>
<elementProp name="ThreadGroup.main_controller" elementType="LoopController" guiclass="LoopControlPanel" testclass="LoopController" testname="循环控制器" enabled="true">
<boolProp name="LoopController.continue_forever">false</boolProp>
<intProp name="LoopController.loops">-1</intProp>
</elementProp>
</kg.apc.jmeter.threads.SteppingThreadGroup>
<hashTree>
<HTTPSamplerProxy guiclass="HttpTestSampleGui" testclass="HTTPSamplerProxy" testname="HTTP请求" enabled="true">
<elementProp name="HTTPsampler.Arguments" elementType="Arguments" guiclass="HTTPArgumentsPanel" testclass="Arguments" testname="用户定义的变量" enabled="true">
<collectionProp name="Arguments.arguments"/>
</elementProp>
<stringProp name="HTTPSampler.domain">www.zhibo8.cc</stringProp>
<stringProp name="HTTPSampler.port"></stringProp>
<stringProp name="HTTPSampler.connect_timeout"></stringProp>
<stringProp name="HTTPSampler.response_timeout"></stringProp>
<stringProp name="HTTPSampler.protocol"></stringProp>
<stringProp name="HTTPSampler.contentEncoding"></stringProp>
<stringProp name="HTTPSampler.path"></stringProp>
<stringProp name="HTTPSampler.method">GET</stringProp>
<boolProp name="HTTPSampler.follow_redirects">true</boolProp>
<boolProp name="HTTPSampler.auto_redirects">false</boolProp>
<boolProp name="HTTPSampler.use_keepalive">true</boolProp>
<boolProp name="HTTPSampler.DO_MULTIPART_POST">false</boolProp>
<boolProp name="HTTPSampler.monitor">false</boolProp>
<stringProp name="HTTPSampler.embedded_url_re"></stringProp>
</HTTPSamplerProxy>
<hashTree/>
</hashTree>
<kg.apc.jmeter.vizualizers.CorrectedResultCollector guiclass="kg.apc.jmeter.vizualizers.ThreadsStateOverTimeGui" testclass="kg.apc.jmeter.vizualizers.CorrectedResultCollector" testname="jp@gc - Active Threads Over Time" enabled="true">
<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>true</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>
<threadCounts>true</threadCounts>
<idleTime>true</idleTime>
<connectTime>true</connectTime>
</value>
</objProp>
<stringProp name="filename"></stringProp>
<longProp name="interval_grouping">500</longProp>
<boolProp name="graph_aggregated">false</boolProp>
<stringProp name="include_sample_labels"></stringProp>
<stringProp name="exclude_sample_labels"></stringProp>
<stringProp name="start_offset"></stringProp>
<stringProp name="end_offset"></stringProp>
<boolProp name="include_checkbox_state">false</boolProp>
<boolProp name="exclude_checkbox_state">false</boolProp>
</kg.apc.jmeter.vizualizers.CorrectedResultCollector>
<hashTree/>
</hashTree>
</hashTree>
</jmeterTestPlan>
