JMeter下Groovy和BeanShell语言在不同组件中性能差异实践探究

一般而言JMeter下性能最好的是jar包这类java原生请求，对于JMeter并没有原生支持的请求，一般都会将其直接编译为jar包，然后再JMeter中调用，这样性能最好。

 但是有些需求并不适合用jar包的方式来进行，比如报文拼接，这个一般在请求Sampler发送前执行，比较方便的是使用BeanShell或者Groovy等前置处理器操作。那对于这种报文拼接的操作，使用JSR233组件还是BeanShell组件，以及使用JSR233组件中的BeanShell还是Groovy之间有没有什么性能差异呢？

 我们去翻了翻JMeter官方的相关介绍，只在JMeter官网的最佳实践“http://jmeter.apache.org/usermanual/best-practices.html”中找到对JSR233组件有如下的描述：

 强烈建议在大压力测试场景中使用Groovy这个可以预编译的语言，而BeanShell虽然也实现了预编译的接口，但是却没有被编码进去。这段介绍并没有说JSR233组件和BeanShell组件之间的性能差异。

 下面我们就写三个简单的脚本来看一下在前置处理器中Groovy和BeanShell两种语言以及JSR233组件和BeanShell组件的性能差异。脚本截图如下，文章最下面放上jxm原文件。

 

 

Groovy和BeanShell的前置处理器中的代码非常简单，就是vars.put生成一个JMeter参数

 

每个脚本，我们设置为300VU，500TPS，执行5分钟，采用CLI方式执行，执行完后，切割中间的3分钟生成报告，服务器的硬件为8核CPUE7-4820。具体执行结果如下：

 

 从试验结果可以得出如下几个很明显的现象：

• JSR233组件下的BeanShell性能非常差。

• 同一个场景中，如果有的脚本使用了JSR233组件下的BeanShell语言，那会严重影响当前场景下的所有BeanShell组件模块的性能；同时也会稍微影响JSR233组件下的Groovy语言的性能，导致其TPS略有下降。

• BeanShell组件下的BeanShell语言性能比JSR233组件下的Groovy语言性能稍差，实测TPS基本一致。

 通过本次试验，在此提醒大家，在编写JMeter脚本的时候，千万不要使用JSR233组件下的BeanShell语言，如果要使用BeanShell语言一定要用BeanShell组件下的。

 喜欢请长按下方二维码关注我的个人微信号，测试杂货铺。^_^

Groovy和BeanShell性能比较.JMX的源文件如下，复制然后保存成jmx就可以在JMeter中使用：

<?xml version="1.0" encoding="UTF-8"?>
<jmeterTestPlan version="1.2" properties="5.0" jmeter="5.1 r1853635">
  <hashTree>
    <TestPlan guiclass="TestPlanGui" testclass="TestPlan" testname="Test Plan" enabled="true">
      <stringProp name="TestPlan.comments"></stringProp>
      <boolProp name="TestPlan.functional_mode">false</boolProp>
      <boolProp name="TestPlan.tearDown_on_shutdown">true</boolProp>
      <boolProp name="TestPlan.serialize_threadgroups">false</boolProp>
      <elementProp name="TestPlan.user_defined_variables" elementType="Arguments" guiclass="ArgumentsPanel" testclass="Arguments" testname="User Defined Variables" enabled="true">
        <collectionProp name="Arguments.arguments"/>
      </elementProp>
      <stringProp name="TestPlan.user_define_classpath"></stringProp>
    </TestPlan>
    <hashTree>
      <ThreadGroup guiclass="ThreadGroupGui" testclass="ThreadGroup" testname="Thread Group Groovy" enabled="true">
        <stringProp name="ThreadGroup.on_sample_error">continue</stringProp>
        <elementProp name="ThreadGroup.main_controller" elementType="LoopController" guiclass="LoopControlPanel" testclass="LoopController" testname="Loop Controller" enabled="true">
          <boolProp name="LoopController.continue_forever">false</boolProp>
          <intProp name="LoopController.loops">-1</intProp>
        </elementProp>
        <stringProp name="ThreadGroup.num_threads">300</stringProp>
        <stringProp name="ThreadGroup.ramp_time">10</stringProp>
        <boolProp name="ThreadGroup.scheduler">true</boolProp>
        <stringProp name="ThreadGroup.duration">300</stringProp>
        <stringProp name="ThreadGroup.delay"></stringProp>
      </ThreadGroup>
      <hashTree>
        <kg.apc.jmeter.samplers.DummySampler guiclass="kg.apc.jmeter.samplers.DummySamplerGui" testclass="kg.apc.jmeter.samplers.DummySampler" testname="DummyGroovy" enabled="true">
          <boolProp name="WAITING">true</boolProp>
          <boolProp name="SUCCESFULL">true</boolProp>
          <stringProp name="RESPONSE_CODE">200</stringProp>
          <stringProp name="RESPONSE_MESSAGE">OK</stringProp>
          <stringProp name="REQUEST_DATA">${testvars1}</stringProp>
          <stringProp name="RESPONSE_DATA">Dummy Sampler used to simulate requests and responses
without actual network activity. This helps debugging tests.</stringProp>
          <stringProp name="RESPONSE_TIME">${__Random(50,500)}</stringProp>
          <stringProp name="LATENCY">${__Random(1,50)}</stringProp>
          <stringProp name="CONNECT">${__Random(1,5)}</stringProp>
        </kg.apc.jmeter.samplers.DummySampler>
        <hashTree>
          <JSR223PreProcessor guiclass="TestBeanGUI" testclass="JSR223PreProcessor" testname="JSR223 PreProcessor" enabled="true">
            <stringProp name="cacheKey">true</stringProp>
            <stringProp name="filename"></stringProp>
            <stringProp name="parameters"></stringProp>
            <stringProp name="script">vars.put("testvars1","testvars1Groovy")</stringProp>
            <stringProp name="scriptLanguage">groovy</stringProp>
          </JSR223PreProcessor>
          <hashTree/>
        </hashTree>
        <ConstantThroughputTimer guiclass="TestBeanGUI" testclass="ConstantThroughputTimer" testname="Constant Throughput Timer" enabled="true">
          <intProp name="calcMode">2</intProp>
          <doubleProp>
            <name>throughput</name>
            <value>30000.0</value>
            <savedValue>0.0</savedValue>
          </doubleProp>
        </ConstantThroughputTimer>
        <hashTree/>
      </hashTree>
      <ThreadGroup guiclass="ThreadGroupGui" testclass="ThreadGroup" testname="Thread Group JSR233BeanShell" enabled="true">
        <stringProp name="ThreadGroup.on_sample_error">continue</stringProp>
        <elementProp name="ThreadGroup.main_controller" elementType="LoopController" guiclass="LoopControlPanel" testclass="LoopController" testname="Loop Controller" enabled="true">
          <boolProp name="LoopController.continue_forever">false</boolProp>
          <intProp name="LoopController.loops">-1</intProp>
        </elementProp>
        <stringProp name="ThreadGroup.num_threads">300</stringProp>
        <stringProp name="ThreadGroup.ramp_time">10</stringProp>
        <boolProp name="ThreadGroup.scheduler">true</boolProp>
        <stringProp name="ThreadGroup.duration">300</stringProp>
        <stringProp name="ThreadGroup.delay"></stringProp>
      </ThreadGroup>
      <hashTree>
        <kg.apc.jmeter.samplers.DummySampler guiclass="kg.apc.jmeter.samplers.DummySamplerGui" testclass="kg.apc.jmeter.samplers.DummySampler" testname="DummyJSR233BeanShell" enabled="true">
          <boolProp name="WAITING">true</boolProp>
          <boolProp name="SUCCESFULL">true</boolProp>
          <stringProp name="RESPONSE_CODE">200</stringProp>
          <stringProp name="RESPONSE_MESSAGE">OK</stringProp>
          <stringProp name="REQUEST_DATA">${testvars1}</stringProp>
          <stringProp name="RESPONSE_DATA">Dummy Sampler used to simulate requests and responses
without actual network activity. This helps debugging tests.</stringProp>
          <stringProp name="RESPONSE_TIME">${__Random(50,500)}</stringProp>
          <stringProp name="LATENCY">${__Random(1,50)}</stringProp>
          <stringProp name="CONNECT">${__Random(1,5)}</stringProp>
        </kg.apc.jmeter.samplers.DummySampler>
        <hashTree>
          <JSR223PreProcessor guiclass="TestBeanGUI" testclass="JSR223PreProcessor" testname="JSR223 PreProcessor" enabled="true">
            <stringProp name="scriptLanguage">beanshell</stringProp>
            <stringProp name="parameters"></stringProp>
            <stringProp name="filename"></stringProp>
            <stringProp name="cacheKey">true</stringProp>
            <stringProp name="script">vars.put("testvars1","testvars1BeanShell");</stringProp>
          </JSR223PreProcessor>
          <hashTree/>
        </hashTree>
        <ConstantThroughputTimer guiclass="TestBeanGUI" testclass="ConstantThroughputTimer" testname="Constant Throughput Timer" enabled="true">
          <intProp name="calcMode">2</intProp>
          <doubleProp>
            <name>throughput</name>
            <value>30000.0</value>
            <savedValue>0.0</savedValue>
          </doubleProp>
        </ConstantThroughputTimer>
        <hashTree/>
      </hashTree>
      <ThreadGroup guiclass="ThreadGroupGui" testclass="ThreadGroup" testname="Thread Group BeanShellBeanShell" enabled="true">
        <stringProp name="ThreadGroup.on_sample_error">continue</stringProp>
        <elementProp name="ThreadGroup.main_controller" elementType="LoopController" guiclass="LoopControlPanel" testclass="LoopController" testname="Loop Controller" enabled="true">
          <boolProp name="LoopController.continue_forever">false</boolProp>
          <intProp name="LoopController.loops">-1</intProp>
        </elementProp>
        <stringProp name="ThreadGroup.num_threads">300</stringProp>
        <stringProp name="ThreadGroup.ramp_time">10</stringProp>
        <boolProp name="ThreadGroup.scheduler">true</boolProp>
        <stringProp name="ThreadGroup.duration">300</stringProp>
        <stringProp name="ThreadGroup.delay"></stringProp>
      </ThreadGroup>
      <hashTree>
        <kg.apc.jmeter.samplers.DummySampler guiclass="kg.apc.jmeter.samplers.DummySamplerGui" testclass="kg.apc.jmeter.samplers.DummySampler" testname="DummyBeanShell" enabled="true">
          <boolProp name="WAITING">true</boolProp>
          <boolProp name="SUCCESFULL">true</boolProp>
          <stringProp name="RESPONSE_CODE">200</stringProp>
          <stringProp name="RESPONSE_MESSAGE">OK</stringProp>
          <stringProp name="REQUEST_DATA">${testvars1}</stringProp>
          <stringProp name="RESPONSE_DATA">Dummy Sampler used to simulate requests and responses
without actual network activity. This helps debugging tests.</stringProp>
          <stringProp name="RESPONSE_TIME">${__Random(50,500)}</stringProp>
          <stringProp name="LATENCY">${__Random(1,50)}</stringProp>
          <stringProp name="CONNECT">${__Random(1,5)}</stringProp>
        </kg.apc.jmeter.samplers.DummySampler>
        <hashTree>
          <BeanShellPreProcessor guiclass="TestBeanGUI" testclass="BeanShellPreProcessor" testname="BeanShell PreProcessor" enabled="true">
            <stringProp name="filename"></stringProp>
            <stringProp name="parameters"></stringProp>
            <boolProp name="resetInterpreter">false</boolProp>
            <stringProp name="script">vars.put("testvars1","testvars1BeanShell");</stringProp>
          </BeanShellPreProcessor>
          <hashTree/>
        </hashTree>
        <ConstantThroughputTimer guiclass="TestBeanGUI" testclass="ConstantThroughputTimer" testname="Constant Throughput Timer" enabled="true">
          <intProp name="calcMode">2</intProp>
          <doubleProp>
            <name>throughput</name>
            <value>30000.0</value>
            <savedValue>0.0</savedValue>
          </doubleProp>
        </ConstantThroughputTimer>
        <hashTree/>
      </hashTree>
      <ResultCollector guiclass="ViewResultsFullVisualizer" testclass="ResultCollector" testname="View Results Tree" enabled="false">
        <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" 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>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>