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  1. JDK
  2. JDK-7146246

G1: expose some of the -XX flags that drive which old regions to collect during mixed GCs

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    • gc
    • b55
    • generic
    • generic
    • Verified

    Backports

      Description

        The heuristics that drive which old regions to collect during mixed GCs and which not, introduced by:

        7132029: G1: mixed GC phase lasts for longer than it should

        and maybe further fine-tuned by:

        7146242: G1: alternative heuristic on deciding which old regions not to collect

        introduced several develop -XX flags. It will be good to expose some of them to the users so that they can adjust the "space efficiency" vs. "pause times duration" trade-off to what they feel it's appropriate for them.

        We should decide what the minimum number of flags is and make sure their names are reasonable.

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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-8002447 G1: expose some of the -XX flags that drive which old regions to collect during mixed GCs

            • 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-8021510 G1: expose some of the -XX flags that drive which old regions to collect during mixed GCs

            • 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-8021732 G1: expose some of the -XX flags that drive which old regions to collect during mixed GCs

            • 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-2222999 G1: expose some of the -XX flags that drive which old regions to collect during mixed GCs

            • P3 - Major loss of function.
            • 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-8013640 G1: expose some of the -XX flags that drive which old regions to collect during mixed GCs

            • P3 - Major loss of function.
            • 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-8016164 G1: expose some of the -XX flags that drive which old regions to collect during mixed GCs

            • P3 - Major loss of function.
            • 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-8018171 G1: expose some of the -XX flags that drive which old regions to collect during mixed GCs

            • P3 - Major loss of function.
            • Closed
            relates to

            Bug - A problem which impairs or prevents the functions of the product. JDK-7132029 G1: mixed GC phase lasts for longer than it should

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

            Enhancement - null JDK-7146242 G1: alternative heuristic on deciding which old regions not to collect

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

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                tonyp Tony Printezis
                tonyp Tony Printezis
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