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  1. JDK
  2. JDK-8151981

Huge slowdown in MethodHandleNatives.setCallSiteTargetNormal

    Details

    • Type: Bug
    • Status: Open
    • Priority: P3
    • Resolution: Unresolved
    • Affects Version/s: 8u72
    • Fix Version/s: None
    • Component/s: core-libs
    • Labels:
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      Description

      There have been reports of very significant performance drops in invokedynamic/method handle performance resulting in lots of time being spent in java.lang.invoke.MethodHandleNatives.setCallSiteTargetNormal.

      [1]: http://mail.openjdk.java.net/pipermail/nashorn-dev/2016-March/006024.html
      [2]: https://groups.google.com/forum/#!topic/jvm-languages/aXH7RwoLIqQ

      These slowdowns occur at seemingly random time during runtime [2] or when re-evaluating big scripts in fresh Nashorn script engines [1]. The process may or may not recover back to normal speed [2].

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            • Assignee:
              aefimov Aleksej Efimov
              Reporter:
              hannesw Hannes Wallnoefer
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              • Created:
                Updated: