Implement relocation of nmethod within CodeCache

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    • Type: Enhancement
    • Resolution: Fixed
    • Priority: P4
    • 26
    • Affects Version/s: 22
    • Component/s: hotspot
    • b19

      We need functionality to relocate existing nmethods within CodeCache.
      The main use case is to group hot nmethods in a separate code heap. Without this functionality, we need to use recompilation which is expensive for big methods.

      Other uses cases:
      - Save C1 nmethods when they are replaced by C2 nmethods having speculative code.
      - Save C2 nmethods being removed as cold.

      We might not need to support relocation of OSR nmethods.

            Assignee:
            Chad Rakoczy
            Reporter:
            Evgeny Astigeevich
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              Created:
              Updated:
              Resolved: