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  1. MariaDB Server
  2. MDEV-4308

DBT-3 Q1 benchmark: Check/profile reduced queries

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      Axel,

      we're now in the same situation as we were in the previous iteration. In order to narrow down the problem, I need to get benchmark results and profiles for the simplified queries.

      The queries are provided below; they should be ran on MyISAM, multiple times. Please check MariaDB 5.5 (with "the fix"), MariaDB 5.3, and MySQL 5.5.

      I need profiles also. If one can observe a meaningful difference between different versions, please pick the runs that show the difference.

      The queries:

      explain
      select
              sum(l_quantity) as sum_qty,
              sum(l_extendedprice) as sum_base_price,
              sum(l_extendedprice * (1 - l_discount)) as sum_disc_price,
              sum(l_extendedprice * (1 - l_discount) * (1 + l_tax)) as sum_charge,
              avg(l_quantity) as avg_qty,
              avg(l_extendedprice) as avg_price,
              avg(l_discount) as avg_disc,
              count(*) as count_order
      from
              lineitem;
       

      select
              sum(l_quantity) as sum_qty
      from
              lineitem;

      Attachments

        1. dbt3-q1a-profiles-mar21.ods
          34 kB
          Sergei Petrunia
        2. q1simple-mar21.ods
          54 kB
          Sergei Petrunia

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              axel Axel Schwenke
              psergei Sergei Petrunia
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                Resolved:

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