Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-6889757

G1: enable card mark elision for initializing writes by compiler (ReduceInitialCardMarks)

    XMLWordPrintable

Details

    • Enhancement
    • Resolution: Fixed
    • P3
    • hs17
    • hs17
    • hotspot
    • gc
    • b04
    • generic
    • generic

    Backports

      Description

        ReduceInitialCardMarks-enabled card mark elision of initializing
        writes has been in the code base for a while (since 6u10/hs11) but has
        been disabled for G1. The changes needed to fix 6888898 should
        allow that optimization to be enabled for G1 as well.

        Attachments

          Issue Links

            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-2184280 G1: enable card mark elision for initializing writes by compiler (ReduceInitialCardMarks)

            • 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-2184281 G1: enable card mark elision for initializing writes by compiler (ReduceInitialCardMarks)

            • 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-2189914 G1: enable card mark elision for initializing writes by compiler (ReduceInitialCardMarks)

            • 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-2184802 G1: enable card mark elision for initializing writes by compiler (ReduceInitialCardMarks)

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-6888898 CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-6920090 G1: Disable ReduceInitialCardMarks at least until 6920109 is fixed

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

            Activity

              People

                ysr Y. Ramakrishna
                ysr Y. Ramakrishna
                Votes:
                0 Vote for this issue
                Watchers:
                1 Start watching this issue

                Dates

                  Created:
                  Updated:
                  Resolved:
                  Imported:
                  Indexed: