Algorithm used to wait to split into parent can be unfair

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    • Type: Improvement
    • Resolution: Done
    • Priority: Major - P3
    • WT2.7.0
    • Affects Version/s: None
    • Component/s: None
    • None
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      There are cases when threads can wait for a long time for a chance to split into their parent. This is possible in a workload that:

      • Has a lot of cache pressure (i.e: relatively small cache and a large number of threads).
      • Generates in-memory internal pages with lots of entries.

      I have seen cases where a thread has waited for over 3 seconds in __split_parent before getting in to do an update.

              Assignee:
              Alexander Gorrod
              Reporter:
              Alexander Gorrod
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                Created:
                Updated:
                Resolved: