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  1. WiredTiger
  2. WT-6211

Review performance regression of global visibility checks in __inmem_row_leaf()

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Details

    • Improvement
    • Status: Closed
    • Major - P3
    • Resolution: Gone away
    • None
    • None
    • None

    Description

      In WT-6151, an empty check was added for time window before validity check. This brought back some performance regression introduced by WT-5754. The aim of this ticket is to investigate scenarios where the time window is not empty and we have to perform expensive global visibility checks.

      Note that this ticket may require creation of new benchmarks that can generate timestamp related workloads.    

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          is caused by

          Bug - A problem which impairs or prevents the functions of the product. WT-5754 Ensure the value is globally visible before encode it into WT_ROW

          • Major - P3 - Major loss of function.
          • Closed
          is related to

          Bug - A problem which impairs or prevents the functions of the product. WT-6082 Skip writing txn-id to data store when not needed

          • Major - P3 - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. WT-6151 Perform an empty check on time window before performing visibility check

          • Major - P3 - Major loss of function.
          • Closed

          Activity

            People

              backlog-server-storage-engines Backlog - Storage Engines Team
              haseeb.bokhari@mongodb.com Haseeb Bokhari (Inactive)
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              Dates

                Created:
                Updated:
                Resolved: