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  1. JDK
  2. JDK-8213086

Compiler thread creation should be bounded by available space in memory and Code Cache

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      Description

        Since JDK-8198756, compiler threads are created/removed at runtime depending on the compile queue length.
        They were supposed to be limited by the available memory, too, but there's a bug in the limiting function (missing braces).

        We should also make this dependent on the available space in the code cache because it does not make sense to add more compiler threads if there is almost no space for compiled code and scratch buffers left (JDK-8177899).

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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-8213523 Compiler thread creation should be bounded by available space in memory and Code Cache

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

            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-8226484 Compiler thread creation should be bounded by available space in memory and Code Cache

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-8177899 Tests fail due to code cache exhaustion on machines with many cores

            • P3 - Major loss of function.
            • Resolved

            Enhancement - null JDK-8198756 Lazy allocation of compiler threads

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

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                mdoerr Martin Doerr
                thartmann Tobias Hartmann
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                  Updated:
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