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  1. JDK
  2. JDK-8228506

Remove rs_length_diff related code

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Details

    • Bug
    • Resolution: Duplicate
    • P5
    • 15
    • 14
    • hotspot
    • gc

    Description

      rs_length_diff code is used to predict an error term for the young gen remembered set length (young_rs_length).

      The associated predictor (G1Analytics::rs_length_diff_seq) is updated wrongly with information from old gen remembered set sizes at every (mixed) gc.

      This means that an error term based on old gen remembered set sizes is applied to something to predict young gen remembered sets.

      Also the need for this should be investigated.

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          duplicates

          Enhancement - null JDK-8231731 Improve cardinality estimations of combined remembered sets for G1

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

          Enhancement - null JDK-8231731 Improve cardinality estimations of combined remembered sets for G1

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

          Enhancement - null JDK-8035557 Pause time predictions off for mixed collections due to wrong rs_length estimation

          • P3 - Major loss of function.
          • Open

          Bug - A problem which impairs or prevents the functions of the product. JDK-8228505 G1 adds old gen region rs lengths to _young_rs_length

          • P3 - Major loss of function.
          • Resolved

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              Unassigned Unassigned
              tschatzl Thomas Schatzl
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              Dates

                Created:
                Updated:
                Resolved: