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  1. JDK
  2. JDK-8069273

Decrease Hot Card Cache Lock contention

    Details

    • Type: Enhancement
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: 9
    • Fix Version/s: 9
    • Component/s: hotspot
    • Labels:
    • Subcomponent:
      gc
    • Resolved In Build:
      b51

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        Description

        On benchmarks with a large number of reference changes (like nosql benchmarks) on "large" machines we noticed that the HotCardCache_lock is highly contended(*).

        Investigate and fix this in the hope to improve behavior.

        (*) Contended as in at the time of trying to get ownership of the lock, there is already another owner of that lock.

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                • Assignee:
                  redestad Claes Redestad
                  Reporter:
                  tschatzl Thomas Schatzl
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                  • Created:
                    Updated:
                    Resolved: