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  1. Core Server
  2. SERVER-15950

Reduce contention on groupCommitMutex in MMAP V1

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Fixed
    • Affects Version/s: 2.7.8
    • Fix Version/s: 2.8.0-rc0
    • Component/s: Concurrency
    • Labels:

      Description

      On insert-only workload (e.g. sysbench first phase), groupCommitMutex shows up as the most congested lock. Attached the Vtune lock profiler output as an evidence

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