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.
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.
- relates to
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JDK-8230706 Waiting on completion of strong nmethod processing causes long pause times with G1
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- Resolved
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JDK-6672778 G1 should trim task queues more aggressively during evacuation pauses
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- Resolved
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