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  1. JDK
  2. JDK-8240870

Shenandoah: merge evac and update phases

    Details

    • Type: Enhancement
    • Status: Open
    • Priority: P4
    • Resolution: Unresolved
    • Affects Version/s: 8-shenandoah, 11-shenandoah, 14, 15
    • Fix Version/s: None
    • Component/s: hotspot
    • Subcomponent:
      gc

      Description

      Current Shenandoah has separate evacuation and update-reference phases. We can merge them together to avoid another pass through the heap.

      Proof-of-concept (runs in "passive", crashes some workloads with concurrent, runs benchmarks, though):
       https://cr.openjdk.java.net/~shade/8240870/webrev.05/

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              • Assignee:
                shade Aleksey Shipilev
                Reporter:
                shade Aleksey Shipilev
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                Dates

                • Created:
                  Updated: