Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8027553

Change the in_cset_fast_test functionality to use the G1BiasedArray abstraction

    XMLWordPrintable

Details

    • Enhancement
    • Resolution: Fixed
    • P4
    • 9
    • hs25, 8
    • hotspot
    • gc
    • b12

    Backports

      Description

        Testing whether a region is in the collection set is currently done using the _in_cset_fast_test array. This is a raw pointer, managed manually.

        In JDK-7163191 we introduced an abstraction for such per-region tables: change the existing _in_cset_fast test to use this.

        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-8040672 Change the in_cset_fast_test functionality to use the G1BiasedArray abstraction

            • 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-8063505 Change the in_cset_fast_test functionality to use the G1BiasedArray abstraction

            • 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-8070790 Change the in_cset_fast_test functionality to use the G1BiasedArray abstraction

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

            Enhancement - null JDK-8027551 Add fast path checking whether an object is scavengable in g1 oop scan closures

            • P3 - Major loss of function.
            • Closed

            Enhancement - null JDK-7163196 G1: Use two arrays for the fast cset test, put region type information in the arrays

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

            Enhancement - null JDK-7163191 G1: introduce a "heap spanning table" abstraction

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

            Enhancement - null JDK-8027554 Implicit in-heap check in G1CollectedHeap::in_cset_fast_test() not always required

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

            Activity

              People

                tschatzl Thomas Schatzl
                tschatzl Thomas Schatzl
                Votes:
                0 Vote for this issue
                Watchers:
                2 Start watching this issue

                Dates

                  Created:
                  Updated:
                  Resolved: