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  1. JDK
  2. JDK-6458537

BiasedLocking causes 30% Performance regression in SPECjAppServer

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    • b90
    • 6
    • b97
    • sparc
    • solaris_10

    Backports

      Description

        We are seeing a 30% performance regression in Mustang b90 with the server compiler.

        We are still narrowing down the source of the regression (so consider this an "early warning system"), though the performance regression does not come from GC (GC times are the same between builds), nor the JDK (the b89 libjvm with the b90 JDK performs as expected).

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            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-2140999 BiasedLocking causes 30% Performance regression in SPECjAppServer

            • P1 - Blocks development and/or testing work, production could not run.
            • Closed

            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-2176714 BiasedLocking causes 30% Performance regression in SPECjAppServer

            • P3 - Major loss of function.
            • Closed

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                kbr Kenneth Russell (Inactive)
                soaks Scott Oaks
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