Documentation Home
MySQL 8.4 Reference Manual
Related Documentation Download this Manual
PDF (US Ltr) - 39.9Mb
PDF (A4) - 40.0Mb
Man Pages (TGZ) - 258.3Kb
Man Pages (Zip) - 365.3Kb
Info (Gzip) - 4.0Mb
Info (Zip) - 4.0Mb

MySQL 8.4 Reference Manual  /  ...  /  The latest_file_io and x$latest_file_io Views The latest_file_io and x$latest_file_io Views

These views summarize file I/O activity, grouped by file and thread. By default, rows are sorted with most recent I/O first.

The latest_file_io and x$latest_file_io views have these columns:

  • thread

    For foreground threads, the account associated with the thread (and port number for TCP/IP connections). For background threads, the thread name and thread ID

  • file

    The file path name.

  • latency

    The wait time of the file I/O event.

  • operation

    The type of operation.

  • requested

    The number of data bytes requested for the file I/O event.