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  1. JDK
  2. JDK-8279527

Dereferencing segments backed by different scopes leads to pollution

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Details

    • Bug
    • Status: Resolved
    • P3
    • Resolution: Fixed
    • None
    • 18
    • core-libs
    • None
    • b31

    Backports

      Description

        If the LoopOverPollutedSegments benchmark is enhanced with the attached patch, the performance of some of its benchmark methods regresses greatly.

        This is caused by the call to the liveness check method (checkValidState) becoming megamorphic.

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            backported by

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8279777 Dereferencing segments backed by different scopes leads to pollution

            • P3 - Major loss of function.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8280296 Dereferencing segments backed by different scopes leads to pollution

            • P3 - Major loss of function.
            • Resolved
            links to

            Commit Commit openjdk/jdk18/d65c6658

            Review Review openjdk/jdk18/82

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                mcimadamore Maurizio Cimadamore
                mcimadamore Maurizio Cimadamore
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                  Created:
                  Updated:
                  Resolved: