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  1. JDK
  2. JDK-8334098

Parallel: Obsolete HeapFirstMaximumCompactionCount

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Details

    • CSR
    • Resolution: Approved
    • P4
    • 24
    • hotspot
    • gc
    • behavioral
    • minimal
    • Searching for affected flag doesn't return any blog posts/tutorials covering or suggesting using or changing it with Parallel GC.
    • add/remove/modify command line option
    • Implementation

    Description

      Summary

      Obsolete the VM product option HeapFirstMaximumCompactionCount due to removal of corresponding functionality. It's used/implemented only by Parallel GC.

      Problem

      This flag offers little benefit and is rarely used, but complicates the implementation on deciding whether a full-gc should do maximum-compaction.

      Solution

      Remove the functionality and obsolete the VM product option HeapFirstMaximumCompactionCount without any deprecation period.

      Specification

      -  product(uintx, HeapFirstMaximumCompactionCount, 3,                        \
-          "The collection count for the first maximum compaction")          \
-          range(0, max_uintx)                                               \
-                                                                            \

      Attachments

        Issue Links

          csr of

          Enhancement - null JDK-8334097 Parallel: Obsolete HeapFirstMaximumCompactionCount

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

          Activity

            People

              ayang Albert Yang
              ayang Albert Yang
              Thomas Schatzl
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              Dates

                Created:
                Updated:
                Resolved: