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  1. MariaDB Server
  2. MDEV-7956

handler::rebind_psi() takes 0.07% in OLTP RO

Details

    • Bug
    • Status: Closed (View Workflow)
    • Major
    • Resolution: Fixed
    • 10.1(EOL)
    • 10.1.6
    • OTHER
    • None

    Description

      Data comes from Sandy Bridge system running sysbench OLTP RO in 1 thread against 1 table.

      Call graphs:

      -   0.07%  mysqld  mysqld
      		 
         - handler::rebind_psi()
      		 
            + 73.91% open_tables(THD*, DDL_options_st const&, TABLE_LIST**, unsigned int*, unsigned int, Prelocking_strategy*)
      		 
            + 26.09% open_table(THD*, TABLE_LIST*, Open_table_context*)

      Most time spent for function call convention. It also adds ~0.03% to open_table(). Try to make it inline.

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          Activity

            Transition Time In Source Status Execution Times
            Sergey Vojtovich made transition -
            Open In Review
            		40d 20h 37m 1
            Sergey Vojtovich made transition -
            Stalled In Review
            		14d 19h 6m 1
            Sergei Golubchik made transition -
            In Review Stalled
            		14d 4h 40m 2
            Sergey Vojtovich made transition -
            Stalled Closed
            		1d 2h 4m 1

            People

              svoj Sergey Vojtovich
              svoj Sergey Vojtovich
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                Updated:
                Resolved:

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