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  1. JDK
  2. JDK-8256415

Shenandoah: Should evacuate/update codecache concurrently when class unloading is off

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    • Subcomponent:
      gc
    • Resolved In Build:
      b26

      Description

      During isolating GC work (JDK-8255765), I found that Shenandoah still evacuate/update codecache roots at final mark safepoint when class unloading is off.

      Actually, it can be done concurrently by utilizing nmethod_entry_barrier.

      Shenandoah should always enable nmethod_entry_barrier for evacuation, regardless class unloading status, and perform code cache evacuation/updating during strong root processing.
       

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              Assignee:
              zgu Zhengyu Gu
              Reporter:
              zgu Zhengyu Gu
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