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  1. JDK
  2. JDK-8214329

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

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    • b19
    • 12
    • b25
    • linux

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      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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                dlong Dean Long
                ecaspole Eric Caspole
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                  Updated:
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