Add backoff logic to the btree delete and walk yield loops

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    • Type: Improvement
    • Resolution: Fixed
    • Priority: Major - P3
    • 3.5.11, WT3.0.0
    • Affects Version/s: None
    • Component/s: None
    • None
    • Storage 2017-07-31
    • None

      The loops assume that pages will change state quickly, so busy waiting is reasonable. We've seen cases in other parts of the code where that isn't the case - we should add backoff to the yield loops, to avoid saturating CPU with busy waiting if page state transitions take longer than expected.

              Assignee:
              Vamsi Boyapati
              Reporter:
              Vamsi Boyapati
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