Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8201313

Times of sub-phases of ext root scan may be larger than the sum of individual timings

    Details

    • Type: Bug
    • Status: Open
    • Priority: P4
    • Resolution: Unresolved
    • Affects Version/s: 11
    • Fix Version/s: 16
    • Component/s: hotspot
    • Labels:
    • Subcomponent:
      gc

      Description

      The BufferingOopClosure and partial task queue trimming introduced in JDK-6672778 may do some work that that is attributed to the ObjCopy phase at the end of root processing.

      This time is properly removed from the total ext root scan time at the end of root processing during evacuation.
      However this time is not in any way subtracted from the individual sub-timings of ext root scan, so it is possible that the sum of time spent in the individual tasks is larger than the total time spent.

      Note that this is purely an issue with log display.

        Attachments

          Issue Links

            Activity

              People

              • Assignee:
                Unassigned
                Reporter:
                tschatzl Thomas Schatzl
              • Votes:
                0 Vote for this issue
                Watchers:
                2 Start watching this issue

                Dates

                • Created:
                  Updated: