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  1. JDK
  2. JDK-8215962

Support ThreadPriorityPolicy mode 1 for non-root users on linux/bsd

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    • b03

    Backports

      Description

        Currently, when ThreadPriorityPolicy is set to 1 (so called Aggressive mode), on linux and bsd(+Mac) a root-user-check (geteuid() != 0)) is done.
        See for example the coding in jdk/src/hotspot/os/linux/os_linux.cpp int prio_init().

        However the root-user-check has a few drawbacks:
        - it blocks the capabilities feature available on current Linux distros (CAP_SYS_NICE capability) that can be used to allow setting lower niceness also for non-root
        - setting a higher "niceness" (lower priority) is not possible on Linux for non-root because of the geteuid check

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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-8217494 Support ThreadPriorityPolicy mode 1 for non-root users on linux/bsd

            • P3 - Major loss of function.
            • 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-8219308 Support ThreadPriorityPolicy mode 1 for non-root users on linux/bsd

            • P3 - Major loss of function.
            • 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-8219727 Support ThreadPriorityPolicy mode 1 for non-root users on linux/bsd

            • P3 - Major loss of function.
            • 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-8231773 Support ThreadPriorityPolicy mode 1 for non-root users on linux/bsd

            • P3 - Major loss of function.
            • Resolved

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                mbaesken Matthias Baesken
                mbaesken Matthias Baesken
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