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  1. JDK
  2. JDK-8357245

[lworld] Potential performance regression of Unsafe::getAndSet after JDK-8351569

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    • Icon: Enhancement Enhancement
    • Resolution: Unresolved
    • Icon: P4 P4
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    • repo-valhalla
    • core-libs

      This issue's purpose is to keep track of a potential performance regression introduced with JDK-8351569 (and discovered while investigating JDK-8343420). JDK-8351569 introduced a new overloaded version of Unsafe::getAndSet that is not intrinsified (which is used by e.g. VarHandle::getAndSet). We should evaluate how much of a performance impact this can have and potentially intrinsify it or make it call the intrinsified version.

            liach Chen Liang
            dfenacci Damon Fenacci
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              Created:
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