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  1. JDK
  2. JDK-8344049

Shenandoah: Eliminate init-update-refs safepoint

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    • gc
    • b06

      Shenandoah typically takes 4 safepoints per GC cycle. Although Shenandoah itself does not spend much time on these safepoints, it may still take quite some time for all of the mutator threads to reach the safepoint. The occasionally long time-to-safepoint increases latency in the higher percentiles. It may not be possible to eliminate all of these safepoints, but the `init-update-refs` safepoint should be the easiest to eliminate.

        1.
        		 Shenandoah: Retire GC LABs concurrently Sub-task Resolved William Kemper  
        2.
        		 Shenandoah: Make all threads use local gc state Sub-task Resolved William Kemper  

            wkemper William Kemper
            wkemper William Kemper
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