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  1. JDK
  2. JDK-8194681

G1 uses young free cset time when reporting non-young free cset times

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Details

    • Bug
    • Resolution: Fixed
    • P3
    • 10
    • 9, 10, 11
    • hotspot
    • gc
    • b39

    Backports

      Description

        In g1CollectedHeap.cpp at the end of the G1FreeCollectionSetTask::work() method, young_time is reported as G1GCPhaseTimes::NonYoungFreeCSet.

        if (has_non_young_time) {
              timer->record_time_secs(G1GCPhaseTimes::NonYoungFreeCSet, worker_id, young_time);
        }

        This screws up timing predictions as this value is used for predicting non-young region elapsed time.

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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-8195564 G1 uses young free cset time when reporting non-young free cset times

            • 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-8195913 G1 uses young free cset time when reporting non-young free cset times

            • 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-8197703 G1 uses young free cset time when reporting non-young free cset times

            • 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-8200954 G1 uses young free cset time when reporting non-young free cset times

            • P3 - Major loss of function.
            • Resolved

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                lkorinth Leo Korinth
                lkorinth Leo Korinth
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                  Created:
                  Updated:
                  Resolved: