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  1. MariaDB ColumnStore
  2. MCOL-5601

Config::makeConfig bottlenecks on a mutex contributing to CPU burned in sys

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Details

    • Bug
    • Status: In Testing (View Workflow)
    • Major
    • Resolution: Unresolved
    • 22.08.8, 23.02.4
    • 23.10
    • PrimProc
    • None
    • 2023-11, 2023-12

    Description

      CPU sys time measurements with the patch the resolves MCOL-5472-74 demonstrated there is a problematic `Config::makeConfig` call in `RowAggregation::aggReset`. This contributes 14% to CPU utilization in systime. Workload is GROUP BY intensive query.

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          is part of

          Bug - A problem which impairs or prevents the functions of the product. MCOL-5460 concurrent CTE operation excessive mutex

          • Critical - Crashes, loss of data, severe memory leak.
          • Stalled

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            People

              leonid.fedorov Leonid Fedorov
              drrtuy Roman
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              Dates

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                Updated:

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