synchronized ServiceContext getters are too slow

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    • Type: Bug
    • Resolution: Fixed
    • Priority: Major - P3
    • 4.8.0
    • Affects Version/s: None
    • Component/s: Internal Code
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    • Fully Compatible
    • ALL
    • Service arch 2020-10-05
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      Caused by SERVER-51055

      The locking on getter operations is showing up as contention and performance drops in sys-perf (see BF-18938).

      We can do the same job with a simple AtomicWord<uintptr_t> storage implementation and simulating a unique_ptr's ownership semantics.

            Assignee:
            Billy Donahue
            Reporter:
            Billy Donahue
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              Created:
              Updated:
              Resolved: