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  1. JDK
  2. JDK-8048838

type inference performance regression

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    • b56
    • generic
    • generic
    • Not verified

    Backports

      Description

        Time of compilation of attached source is increased by 10-30 times on 8u20 and 9 compared with 8:

          14 sec jdk8, solaris-x64
         150 sec jdk9, solaris-x64 (time increase: x11)
         120 sec jdk8, solaris-sparcv9
        4020 sec jdk9, solaris-sparcv9 (time increase: x33)

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            backported by

            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-8085368 type inference performance regression

            • P3 - Major loss of function.
            • Resolved
            is blocked by

            Enhancement - null JDK-8032360 javac, speculative attribution refactoring

            • P3 - Major loss of function.
            • Resolved

            JEP - Java Enhancement Proposal JDK-8051946 JEP 215: Tiered Attribution for javac

            • P2 - Crashes, loss of data, severe memory leak.
            • Closed
            relates to

            Bug - A problem which impairs or prevents the functions of the product. JDK-8029002 javac should take multiple upper bounds into account in incorporation

            • P3 - Major loss of function.
            • Resolved

            Bug - A problem which impairs or prevents the functions of the product. JDK-8055984 type inference exponential compilation performance

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

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                mcimadamore Maurizio Cimadamore
                larbouzo Leonid Arbuzov
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                  Created:
                  Updated:
                  Resolved: