groovy 使用JSR223采样器时，Jmeter经历随机缓慢的运行时间

vdgimpew  于 2022-11-21  发布在  其他
关注(0)|答案(1)|浏览(241)

我目前正在调试一个奇怪的现象。当运行负载测试时，我发现我有一些请求花费了9秒而不是几毫秒。这些请求非常稀疏。它们导致尖峰和其他问题，使测试无法使用。（我直接解析jmeter日志为弹性，这就是为什么我有这些图形，日志数据是正确的，我已经检查了10次）

正如您所看到的，其他线程在同一时间对同一端点的其他请求仍然非常快

然后，我开始一个一个地剥离测试中的所有内容，并找到了罪魁祸首。当我禁用所有JSR 223采样器时，没有出现尖峰。奇怪的是，即使我添加了一个空的JSR 223采样器（内部没有代码），也会出现这些“尖峰”。
因此，当我禁用空采样器（如

）时，不会出现尖峰
但当我启用空采样器时会出现尖峰（或一些脚本在无所谓）

我使用最新的justb 4/docker-jmeter docker image版本5.4这是我的Jmeter文件。有什么想法吗？
`

<?xml version="1.0" encoding="UTF-8"?>
<jmeterTestPlan version="1.2" properties="5.0" jmeter="5.4.3">
  <hashTree>
    <TestPlan guiclass="TestPlanGui" testclass="TestPlan" testname="LoadScenarios.jmx" enabled="true">
      <stringProp name="TestPlan.comments">This test plan was created by the BlazeMeter converter v.2.4.18. Please contact support@blazemeter.com for further support.</stringProp>
      <boolProp name="TestPlan.functional_mode">false</boolProp>
      <boolProp name="TestPlan.serialize_threadgroups">true</boolProp>
      <elementProp name="TestPlan.user_defined_variables" elementType="Arguments" guiclass="ArgumentsPanel" testclass="Arguments" enabled="true">
        <collectionProp name="Arguments.arguments"/>
      </elementProp>
      <stringProp name="TestPlan.user_define_classpath"></stringProp>
    </TestPlan>
    <hashTree>
      <CookieManager guiclass="CookiePanel" testclass="CookieManager" testname="HTTP Cookie Manager" enabled="true">
        <collectionProp name="CookieManager.cookies"/>
        <boolProp name="CookieManager.clearEachIteration">false</boolProp>
        <boolProp name="CookieManager.controlledByThreadGroup">false</boolProp>
        <stringProp name="CookieManager.policy">compatibility</stringProp>
      </CookieManager>
      <hashTree/>
      <ConfigTestElement guiclass="HttpDefaultsGui" testclass="ConfigTestElement" testname="HTTP Request Defaults" enabled="true">
        <elementProp name="HTTPsampler.Arguments" elementType="Arguments" guiclass="HTTPArgumentsPanel" testclass="Arguments" enabled="true">
          <collectionProp name="Arguments.arguments"/>
        </elementProp>
        <stringProp name="HTTPSampler.domain">${ServiceURL}</stringProp>
        <stringProp name="HTTPSampler.port">${ServicePort}</stringProp>
        <stringProp name="HTTPSampler.protocol">${ServiceProtocol}</stringProp>
        <stringProp name="HTTPSampler.contentEncoding"></stringProp>
        <stringProp name="HTTPSampler.path"></stringProp>
        <boolProp name="HTTPSampler.image_parser">true</boolProp>
        <boolProp name="HTTPSampler.concurrentDwn">true</boolProp>
        <stringProp name="HTTPSampler.concurrentPool">6</stringProp>
        <stringProp name="HTTPSampler.implementation">HttpClient4</stringProp>
        <stringProp name="HTTPSampler.connect_timeout"></stringProp>
        <stringProp name="HTTPSampler.response_timeout"></stringProp>
      </ConfigTestElement>
      <hashTree/>
      <DNSCacheManager guiclass="DNSCachePanel" testclass="DNSCacheManager" testname="DNS Cache Manager" enabled="true">
        <collectionProp name="DNSCacheManager.servers"/>
        <boolProp name="DNSCacheManager.clearEachIteration">false</boolProp>
        <boolProp name="DNSCacheManager.isCustomResolver">false</boolProp>
      </DNSCacheManager>
      <hashTree/>
      <CacheManager guiclass="CacheManagerGui" testclass="CacheManager" testname="HTTP Cache Manager" enabled="true">
        <boolProp name="clearEachIteration">false</boolProp>
        <boolProp name="useExpires">false</boolProp>
        <boolProp name="CacheManager.controlledByThread">false</boolProp>
      </CacheManager>
      <hashTree/>
      <kg.apc.jmeter.threads.SteppingThreadGroup guiclass="kg.apc.jmeter.threads.SteppingThreadGroupGui" testclass="kg.apc.jmeter.threads.SteppingThreadGroup" testname="StressTestNetworkErrors" enabled="true">
        <stringProp name="ThreadGroup.on_sample_error">continue</stringProp>
        <stringProp name="ThreadGroup.num_threads">200</stringProp>
        <stringProp name="Threads initial delay">10</stringProp>
        <stringProp name="Start users count">10</stringProp>
        <stringProp name="Start users count burst">40</stringProp>
        <stringProp name="Start users period">120</stringProp>
        <stringProp name="Stop users count">5</stringProp>
        <stringProp name="Stop users period">1</stringProp>
        <stringProp name="flighttime">3600</stringProp>
        <stringProp name="rampUp">20</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>
      </kg.apc.jmeter.threads.SteppingThreadGroup>
      <hashTree>
        <JSR223Sampler guiclass="TestBeanGUI" testclass="JSR223Sampler" testname="${__threadNum} Groovy Get After Login" enabled="true">
          <stringProp name="scriptLanguage">groovy</stringProp>
          <stringProp name="parameters"></stringProp>
          <stringProp name="filename"></stringProp>
          <stringProp name="cacheKey">false</stringProp>
          <stringProp name="script">def counter = 0
</stringProp>
        </JSR223Sampler>
        <hashTree/>
        <LoopController guiclass="LoopControlPanel" testclass="LoopController" testname="Loop Controller" enabled="true">
          <boolProp name="LoopController.continue_forever">true</boolProp>
          <intProp name="LoopController.loops">-1</intProp>
        </LoopController>
        <hashTree>
          <ConstantTimer guiclass="ConstantTimerGui" testclass="ConstantTimer" testname="Constant Timer" enabled="true">
            <stringProp name="ConstantTimer.delay">300</stringProp>
          </ConstantTimer>
          <hashTree/>
          <JSR223Sampler guiclass="TestBeanGUI" testclass="JSR223Sampler" testname="StartCalcDuration" enabled="false">
            <stringProp name="scriptLanguage">groovy</stringProp>
            <stringProp name="parameters"></stringProp>
            <stringProp name="filename"></stringProp>
            <stringProp name="cacheKey">true</stringProp>
            <stringProp name="script"></stringProp>
          </JSR223Sampler>
          <hashTree/>
          <HTTPSamplerProxy guiclass="HttpTestSampleGui" testclass="HTTPSamplerProxy" testname="frontapi/Fuehrerwesen/Kunden/ConvertImageFromTiffToJpg" enabled="true">
            <boolProp name="HTTPSampler.postBodyRaw">true</boolProp>
            <elementProp name="HTTPsampler.Arguments" elementType="Arguments">
              <collectionProp name="Arguments.arguments">
                <elementProp name="" elementType="HTTPArgument">
                  <boolProp name="HTTPArgument.always_encode">false</boolProp>
                  <stringProp name="Argument.metadata">=</stringProp>
                </elementProp>
              </collectionProp>
            </elementProp>
            <stringProp name="HTTPSampler.domain"></stringProp>
            <stringProp name="HTTPSampler.port">9510</stringProp>
            <stringProp name="HTTPSampler.protocol">http</stringProp>
            <stringProp name="HTTPSampler.contentEncoding"></stringProp>
            <stringProp name="HTTPSampler.path">frontapi/Fuehrerwesen/Kunden/ConvertImageFromTiffToJpg?${__UUID}</stringProp>
            <stringProp name="HTTPSampler.method">POST</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.image_parser">true</boolProp>
            <stringProp name="HTTPSampler.embedded_url_re"></stringProp>
            <stringProp name="HTTPSampler.implementation">HttpClient4</stringProp>
            <stringProp name="HTTPSampler.connect_timeout"></stringProp>
            <stringProp name="HTTPSampler.response_timeout"></stringProp>
          </HTTPSamplerProxy>
          <hashTree/>
        </hashTree>
      </hashTree>
    </hashTree>
  </hashTree>
</jmeterTestPlan>

`

groovy

1条答案

按热度按时间
1tuwyuhd

1tuwyuhd1#

这就完全像Garbage Collection在行动，我会保证：
1.您正在使用不执行stop-the-world的JVM，这可能会导致更平滑的结果
1.没有足够的JVM Heap，因此GC发生得更频繁，反之亦然，堆太大，GC花费的时间太长
1.您的Groovy脚本的编写方式无法缓存，或者jsr223.compiled_scripts_cache_size属性的默认值100不足以保留所有脚本
因此，请确保遵循9 Easy Solutions for a JMeter Load Test “Out of Memory” Failure文章中的所有建议，因为目前您违反了JMeter Best Practices的一个主要规则：而不是使用最新版本的JMeter。

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