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  1. MariaDB Server
  2. MDEV-7961

Protocol::store_string_aux() takes 0.14% in OLTP RO

        Details

        • Type: Bug
        • Status: Open
        • Priority: Minor
        • Resolution: Unresolved
        • Affects Version/s: 10.1
        • Fix Version/s: 10.1
        • Component/s: None
        • Labels:
          None

          Description

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

          Call graphs:

          -   0.14%  mysqld  mysqld
   - Protocol::store_string_aux(char const*, unsigned long, charset_info_st const*, charset_info_st const*)
      + 53.86% Protocol_text::store(Field*) [clone .part.95]
      + 22.51% Protocol::send_result_set_metadata(List<Item>*, unsigned int)
      + 13.35% Protocol::send_result_set_row(List<Item>*)
      + 9.62% select_send::send_result_set_metadata(List<Item>&, unsigned int)
      + 0.67% Item::send(Protocol*, String*)

          Most time spent for function call convention. Good candidate for inlining?

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                  • Assignee:
                    bar Alexander Barkov
                    Reporter:
                    svoj Sergey Vojtovich
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                    Dates

                    • Created:
                      Updated: