Perform an empty check on time window before performing visibility check

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    • Type: Bug
    • Resolution: Fixed
    • Priority: Major - P3
    • WT10.0.0, 4.4.0-rc6, 4.7.0
    • Affects Version/s: None
    • Component/s: None
    • None
    • Storage - Ra 2020-05-18
    • 5

      WT-5754 introduced expensive global visibility check, __wt_txn_visible_all() of the values being read in __inmem_row_leaf(). This causes a regression in the following workloads:

      workload Regression with visibility check Regression without visibility check
      medium-btree.wtperf 20% 12%
      evict-btree.wtperf 21% 13%

            Assignee:
            Haseeb Bokhari (Inactive)
            Reporter:
            Sulabh Mahajan
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              Created:
              Updated:
              Resolved: