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  1. Jenkins
  2. JENKINS-33279

Concurrent builds in queue cause jenkins to use 300+%CPU


    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: Minor Minor
    • Ubuntu 14.04 amd64 javaThrottle Concurrent Builds Plug-in 1.8.4 Jenkins ver. 1.625.2 Java(TM) SE Runtime Environment (build 1.8.0_66-b17)

      while there are regular builds in queue jenkins uses around 10-20% CPU, but when there are builds blocked by throttle concurrent builds plugin, then CPU goes to 200-400% and website is very slow.

      System Properties
      Name ↓

      awt.toolkit sun.awt.X11.XToolkit
      executable-war /usr/share/jenkins/jenkins.war
      file.encoding UTF-8
      file.encoding.pkg sun.io
      file.separator /
      hudson.diyChunking true
      java.awt.graphicsenv sun.awt.X11GraphicsEnvironment
      java.awt.headless true
      java.awt.printerjob sun.print.PSPrinterJob
      java.class.path /usr/share/jenkins/jenkins.war
      java.class.version 52.0
      java.endorsed.dirs /usr/lib/jvm/java-8-oracle/jre/lib/endorsed
      java.ext.dirs /usr/lib/jvm/java-8-oracle/jre/lib/ext:/usr/java/packages/lib/ext
      java.home /usr/lib/jvm/java-8-oracle/jre
      java.io.tmpdir /tmp
      java.library.path /usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
      java.runtime.name Java(TM) SE Runtime Environment
      java.runtime.version 1.8.0_66-b17
      java.specification.name Java Platform API Specification
      java.specification.vendor Oracle Corporation
      java.specification.version 1.8
      java.vendor Oracle Corporation
      java.vendor.url http://java.oracle.com/
      java.vendor.url.bug http://bugreport.sun.com/bugreport/
      java.version 1.8.0_66
      java.vm.info mixed mode
      java.vm.name Java HotSpot(TM) 64-Bit Server VM
      java.vm.specification.name Java Virtual Machine Specification
      java.vm.specification.vendor Oracle Corporation
      java.vm.specification.version 1.8
      java.vm.vendor Oracle Corporation
      java.vm.version 25.66-b17
      javamelody.About Monitoring https://wiki.jenkins-ci.org/display/JENKINS/Monitoring
      javamelody.analytics-id UA-1335263-7
      javamelody.custom-reports Jenkins Info,About Monitoring
      javamelody.gzip-compression-disabled true
      javamelody.http-transform-pattern /\d+/|/site/.|avadoc/.|/ws/.|obertura/.|estReport/.|iolations/file/.|/user/.|/static/\w/|/adjuncts/\w+/|/bound/[\w\-]+
      javamelody.Jenkins Info /systemInfo
      javamelody.no-database true
      javamelody.storage-directory //var/lib/jenkins/monitoring
      javamelody.system-actions-enabled true
      jcifs.smb.client.domain JIDomain
      jna.platform.library.path /usr/lib/x86_64-linux-gnu:/lib/x86_64-linux-gnu:/lib64:/usr/lib:/lib
      jnidispatch.path /tmp/jna--1712433994/jna3512835223512613503.tmp
      lib.svnkit.http.methods Digest,Basic,NTLM,Negotiate
      lib.svnkit.ssh2.persistent false
      mail.smtp.sendpartial true
      mail.smtps.sendpartial true
      os.arch amd64
      os.name Linux
      os.version 3.13.0-24-generic
      path.separator :
      pid 26197
      sun.arch.data.model 64
      sun.boot.class.path /usr/lib/jvm/java-8-oracle/jre/lib/resources.jar:/usr/lib/jvm/java-8-oracle/jre/lib/rt.jar:/usr/lib/jvm/java-8-oracle/jre/lib/sunrsasign.jar:/usr/lib/jvm/java-8-oracle/jre/lib/jsse.jar:/usr/lib/jvm/java-8-oracle/jre/lib/jce.jar:/usr/lib/jvm/java-8-oracle/jre/lib/charsets.jar:/usr/lib/jvm/java-8-oracle/jre/lib/jfr.jar:/usr/lib/jvm/java-8-oracle/jre/classes
      sun.boot.library.path /usr/lib/jvm/java-8-oracle/jre/lib/amd64
      sun.cpu.endian little
      sun.font.fontmanager sun.awt.X11FontManager
      sun.io.unicode.encoding UnicodeLittle
      sun.java.command /usr/share/jenkins/jenkins.war --accessLoggerClassName=winstone.accesslog.SimpleAccessLogger --simpleAccessLogger.format=combined --simpleAccessLogger.file=/var/log/jenkins/access.log --webroot=/var/cache/jenkins/war --httpPort=-1 --ajp13Port=-1 --httpsPort=8080 --httpsKeyStore=/etc/ssl/private/pol-compile-1.keystore --httpsKeyStorePassword=unwcdwawmsct
      sun.java.launcher SUN_STANDARD
      sun.jnu.encoding UTF-8
      sun.management.compiler HotSpot 64-Bit Tiered Compilers
      sun.os.patch.level unknown
      user.country US
      user.dir /
      user.home /var/lib/jenkins
      user.language en
      user.name jenkins
      user.timezone Europe/Warsaw
      Environment Variables
      Name ↓

      _ /usr/bin/daemon
      HOME /var/lib/jenkins
      JENKINS_HOME /var/lib/jenkins
      LANG en_US.UTF-8
      LANGUAGE en_US:en
      LOGNAME jenkins
      MAIL /var/mail/jenkins
      NLSPATH /usr/dt/lib/nls/msg/%L/%N.cat
      PATH /usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games
      PWD /var/lib/jenkins
      SHELL /bin/bash
      SHLVL 1
      TERM xterm
      USER jenkins
      XDG_RUNTIME_DIR /run/user/1033
      XDG_SESSION_ID 1942
      XFILESEARCHPATH /usr/dt/app-defaults/%L/Dt
      Name ↓



      active-directory 1.41 true false
      ansicolor 0.4.1 true false
      ant 1.2 true false
      antisamy-markup-formatter 1.3 true true
      artifactdeployer 0.33 true false
      backup 1.6.1 true false
      build-blocker-plugin 1.6 true false
      build-flow-plugin 0.18 true false
      build-flow-test-aggregator 1.1 true false
      build-monitor-plugin 1.6+build.149 true false
      build-name-setter 1.3 true false
      build-pipeline-plugin 1.4.7 true false
      build-timeout 1.14.1 true false
      buildgraph-view 1.1.1 true false
      buildresult-trigger 0.17 true false
      categorized-view 1.8 true false
      claim 2.7 true false
      cloudbees-credentials 3.3 true false
      compact-columns 1.10 true false
      conditional-buildstep 1.3.3 true false
      credentials 1.22 true true
      cvs 2.12 true true
      cvs-tag 1.7 true false
      dashboard-view 2.9.6 true false
      delivery-pipeline-plugin 0.9.4 true false
      email-ext 2.40.5 true false
      email-ext-recipients-column 1.0 true false
      emailext-template 0.4 true false
      envinject 1.91.3 true false
      environment-script 1.2.2 true false
      external-monitor-job 1.4 true true
      files-found-trigger 1.3.1 true false
      fstrigger 0.39 true false
      git-client 1.19.0 true false
      git-server 1.6 true false
      global-post-script 1.0.12 true false
      heavy-job 1.1 true false
      instant-messaging 1.35 true false
      ircbot 2.26 true false
      ivytrigger 0.34 true false
      javadoc 1.3 true true
      jenkins-multijob-plugin 1.16 true false
      jenkinswalldisplay 0.6.30 true false
      job-restrictions 0.4 true false
      jquery 1.11.2-0 true false
      jquery-ui 1.0.2 true false
      junit 1.6 true true
      ldap 1.11 true true
      leastload 1.0.3 true false
      locks-and-latches 0.6 true false
      mailer 1.15 true true
      mapdb-api true false
      matrix-auth 1.2 true true
      matrix-project 1.6 true true
      maven-plugin 2.10 true true
      measurement-plots 0.1 true false
      monitoring 1.59.0 true false
      naginator 1.16.1 true false
      nested-view 1.14 true false
      nodelabelparameter 1.5.1 true false
      pam-auth 1.2 true true
      parameterized-trigger 2.27 true false
      periodicbackup 1.3 true false
      plain-credentials 1.1 true false
      postbuild-task 1.8 true false
      powershell 1.3 true false
      PrioritySorter 3.4 true false
      project-inheritance 1.5.3 true false
      publish-over-ssh 1.13 true false
      pwauth 0.4 true false
      ruby 1.2 true false
      ruby-runtime 0.12 true false
      rubymotion 1.11 true false
      run-condition 1.0 true false
      rvm 0.4 true false
      scm-api 0.2 true false
      scp 1.8 true false
      script-security 1.14 true true
      scriptler 2.9 true false
      scripttrigger 0.31 true false
      selenium-builder 1.14 true false
      sidebar-link 1.7 true false
      simple-theme-plugin 0.3 true false
      ssh 2.4 true false
      ssh-agent 1.7 true false
      ssh-credentials 1.11 true true
      ssh-slaves 1.9 true true
      subversion 2.5 true true
      summary_report 1.13 true false
      terminate-ssh-processes-plugin 1.0 true false
      test-stability 1.0 true false
      thinBackup 1.7.4 true false
      throttle-concurrents 1.8.4 true false
      timestamper 1.6.2 true false
      token-macro 1.11 true false
      translation 1.12 true true
      urltrigger 0.38 true false
      versionnumber 1.5 true false
      view-job-filters 1.26 true false
      vsphere-cloud 2.5 true false
      windows-slaves 1.1 true true
      xfpanel 1.2.3 true false
      xshell 0.10 true false
      xtrigger 0.54 true false
      xvfb 1.0.16 true false
      xvnc 1.22 true false

            Unassigned Unassigned
            mareqw Marek Włodarczyk
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