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  1. JDK
  2. JDK-8139551

Scalability problem with redefinition - multiple code cache walks

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Details

    • Bug
    • Resolution: Fixed
    • P4
    • 13
    • 9
    • hotspot
    • b07

    Description


      Class redefinition walks the code cache for every class redefined (twice). It could simply do one walk at the end of the entire redefinition.

      The performance cost of walking code caches have been seen in using redefinition.

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        Issue Links

          relates to

          Enhancement - null JDK-8078725 method adjustments can be done just once for all classes involved into redefinition

          • P3 - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. JDK-8218601 [AOT] Crash in AOTCodeHeap::mark_evol_dependent_methods

          • P2 - Crashes, loss of data, severe memory leak.
          • Closed

          Enhancement - null JDK-8139036 Performance problem when retransforming classes at JVMD startup

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Closed

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              coleenp Coleen Phillimore
              coleenp Coleen Phillimore
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              Dates

                Created:
                Updated:
                Resolved: