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  1. JDK
  2. JDK-8244180

Shenandoah: carry Phase to ShWorkerTimingsTracker explicitly

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    • gc
    • b22

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        The code after JDK-8239786 carries the _current_phase in the ShenandoahPhaseTimings. This works for stop-the-world events.

        However, the testing of JDK-8243495 shows a peculiarity: heap iteration roots walk can happen in the middle of concurrent root walk, which poses the problem for this mechanism: it can acquire a wrong "phase", or add the counters twice to some phase. It is reliably caught by asserts after JDK-8243495 is applied.

        The way out is to pass Phase explicitly to every ShWorkerTimingsTracker, so we do not have this conflict at all.

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                shade Aleksey Shipilev
                shade Aleksey Shipilev
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