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  1. JDK
  2. JDK-8214329

SwingMark SubMenus 9% regression in 12-b19 on Linux client

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: P3
    • Resolution: Fixed
    • Affects Version/s: 12
    • Fix Version/s: 12
    • Component/s: security-libs
    • Labels:
    • Subcomponent:
    • Introduced In Build:
      b19
    • Introduced In Version:
      12
    • Resolved In Build:
      b25
    • OS:
      linux

      Backports

        Description

        In "8212605: Pure-Java implementation of AccessController.doPrivileged", the stackwalk in JVM_GetStackAccessControlContext was changed from using a vframeStream to using a javaVFrame, so that it could access locals. However this caused a regression because javaVFrame has more overhead. JDK-8215205 fixes the problem by allowing the use of javaVFrame only when needed.

        This change reverts JVM_GetStackAccessControlContext back to using vframeStream, and uses the new API in JDK-8215205 to get a javaVFrame lazily. It also removes two unnecessary calls to java_sender().

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                • Assignee:
                  dlong Dean Long
                  Reporter:
                  ecaspole Eric Caspole
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                  • Created:
                    Updated:
                    Resolved: