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  1. JDK
  2. JDK-8190440

Dynamically resize SystemDictionary

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    Details

    • Type: CSR
    • Status: Closed
    • Priority: P3
    • Resolution: Approved
    • Fix Version/s: 10
    • Component/s: hotspot
    • Labels:
      None
    • Subcomponent:
    • Compatibility Risk:
      minimal

      Description

      Summary

      Introduce an option to disable dynamic resizing of system dictionaries during runtime.

      Problem

      https://bugs.openjdk.java.net/browse/JDK-8184765 introduces a new feature that will automatically resize a system dictionary if the load factor is determined to be too high. As a new feature there is a possibility that it might detrimentally affect performance of certain big apps.

      Solution

      Add a new, temporary, option "DynamicallyResizeSystemDictionaries" (default true) to allow users to disable the feature as needed.

      Specification

      Complete code is at: http://cr.openjdk.java.net/~gziemski/8184765_rev4

      diagnostic(bool, DynamicallyResizeSystemDictionaries, true,               \
            "Dynamically resize system dictionaries as needed")               \

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              Assignee:
              gziemski Gerard Ziemski
              Reporter:
              coleenp Coleen Phillimore
              Reviewed By:
              Coleen Phillimore
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                Dates

                Created:
                Updated:
                Resolved: