JDK-8347335 introduced a ZGC regression for Micros-SystemGC

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    • Type: Bug
    • Resolution: Won't Fix
    • Priority: P4
    • 26
    • Affects Version/s: 25
    • Component/s: hotspot
    • gc
    • b12
    • 25
    • x86_64, aarch64
    • os_x

      [~aboldtch] identified that Micros-SystemGC needs to disable GC heuristics during its setup and this caused us to incorrectly identifying https://bugs.openjdk.org/browse/JDK-8350851 having a regression as the trick with modifying Xmn to avoid GC did not work for ZGC.

      Ensuring that no GC will be triggered during setup with -XX:+ZCollectionIntervalOnly revealed that https://bugs.openjdk.org/browse/JDK-8347335 introduced a performance bug in this the Micros-SystemGC benchmark.

            Assignee:
            Unassigned
            Reporter:
            Jonas Norlinder
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              Created:
              Updated:
              Resolved: