CodeHeap State Analytics

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    • Type: Enhancement
    • Resolution: Fixed
    • Priority: P4
    • 11
    • Affects Version/s: 11
    • Component/s: hotspot
    • b10
    • generic
    • generic

      There are occasions when some insight into the current state of the JVM code heap would be helpful to answer questions like
       * Why is the JIT turned off and then on again and again?
       * Where has all the code heap space gone?
       * Why is the method sweeper not working effectively?

      Implement an on-the-fly analysis of the code heap. Trigger analysis and output via command-line parameter (state when vm shuts down) and via jcmd (at any time).

        1. CodeHeapAnalysis.zip
          675 kB
        2. JVM_CodeHeap_StateAnalytics_V2.pdf
          10 kB
        3. JVM_CodeHeap_StateAnalytics.pdf
          10 kB
        1.
        		 Add documentation for JDK-8198691 to Tools Reference Guide Sub-task Resolved Clifford Wayne (Inactive)  

            Assignee:
            Lutz Schmidt
            Reporter:
            Lutz Schmidt
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