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  1. JDK
  2. JDK-8254598

StringDedupTable should use OopStorage

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    Details

    • Type: Enhancement
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: 16
    • Fix Version/s: 17
    • Component/s: hotspot
    • Subcomponent:
      gc
    • Resolved In Build:
      b23

      Description

      The StringDedupTable contains direct weak oop references, so requires special code for walking during weak reference processing. It could instead use OopStorage. This would also involve moving the removal of dead entries to the concurrent phase in StringDedupThread, rather than being handled in pauses as currently done.

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. JDK-8277981 String Deduplication table is never cleaned up due to bad dead_factor_for_cleanup

          • P3 - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. JDK-8267188 gc/stringdedup/TestStringDeduplicationInterned.java fails with Shenandoah

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

          Enhancement - null JDK-8205579 StringDedupTable should use Access API

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

          Enhancement - null JDK-8267185 Add string deduplication support to ParallelGC

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

          Enhancement - null JDK-8267186 Add string deduplication support to ZGC

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

          Bug - A problem which impairs or prevents the functions of the product. JDK-8267218 jdk/jfr/event/gc/collection/TestG1ParallelPhases.java fails with Not found phases\: StringDedupQueueFixup, StringDedupTableFixup

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

          Bug - A problem which impairs or prevents the functions of the product. JDK-8267133 jdk/jfr/event/gc/collection/TestG1ParallelPhases.java fails with Not expected phases: RestorePreservedMarks, RemoveSelfForwardingPtr: expected true, was false

          • P3 - Major loss of function.
          • Resolved

          Enhancement - null JDK-8272609 Add string deduplication support to SerialGC

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

          Commit Commit openjdk/jdk/be0a6552

          Review Review openjdk/jdk/3662

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              Assignee:
              kbarrett Kim Barrett
              Reporter:
              kbarrett Kim Barrett
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                Created:
                Updated:
                Resolved: