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  1. MariaDB Server
  2. MDEV-11378

AliSQL: [Perf] Issue#23 MERGE INNODB AIO REQUEST

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      Description

      Description:
      ------------
      The InnoDB engine support native AIO and simulated AIO on linux platform.
      Native AIO use io_submit that glibc supplied to request IO.
      But InnoDB engine requested AIO one by one through io_submit when trigger read-ahead,
      so it is a little inefficiency.
       
      Solution:
      ---------
      We buffered the AIO requests, then io_submit all.
      For example: when linear-ahead. we buffered next 64 pages io requests,
      at last, io_submit all io requests.
      

      https://github.com/alibaba/AliSQL/commit/4c9d1c72b9db5f7d2267906e0fa6d66948f5dc6c

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              Assignee:
              marko Marko Mäkelä
              Reporter:
              svoj Sergey Vojtovich
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