Shenandoah: trim down default number of GC threads

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    • Type: Enhancement
    • Resolution: Fixed
    • Priority: P3
    • 13
    • Affects Version/s: 8-shenandoah, 11-shenandoah, 13
    • Component/s: hotspot
    • gc
    • b24

        We can trim down the default number of GC threads to make Shenandoah more cooperative with the application and OS scheduler. We routinely trim down concurrent threads to 2..4 when deploying, and better default would make deployment stories simpler.

        NB: ZGC sets 0.6*CPU for parallel and 0.125*CPU for concurrent threads.

          1.
          		 Release Note: Shenandoah reduces the default number of GC threads Sub-task Closed Aleksey Shipilev  

              Assignee:
              Aleksey Shipilev
              Reporter:
              Aleksey Shipilev
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                Created:
                Updated:
                Resolved: