Documentation Home
MySQL 5.7 Reference Manual
Related Documentation Download this Manual
PDF (US Ltr) - 39.4Mb
PDF (A4) - 39.4Mb
PDF (RPM) - 38.7Mb
HTML Download (TGZ) - 11.1Mb
HTML Download (Zip) - 11.1Mb
HTML Download (RPM) - 9.8Mb
Man Pages (TGZ) - 213.5Kb
Man Pages (Zip) - 322.7Kb
Info (Gzip) - 3.6Mb
Info (Zip) - 3.6Mb
Excerpts from this Manual

MySQL 5.7 Reference Manual  /  ...  /  The host_summary_by_stages and x$host_summary_by_stages Views

26.4.3.4 The host_summary_by_stages and x$host_summary_by_stages Views

These views summarize statement stages, grouped by host. By default, rows are sorted by host and descending total latency.

The host_summary_by_stages and x$host_summary_by_stages views have these columns:

  • host

    The host from which the client connected. Rows for which the HOST column in the underlying Performance Schema table is NULL are assumed to be for background threads and are reported with a host name of background.

  • event_name

    The stage event name.

  • total

    The total number of occurrences of the stage event for the host.

  • total_latency

    The total wait time of timed occurrences of the stage event for the host.

  • avg_latency

    The average wait time per timed occurrence of the stage event for the host.


User Comments
User comments in this section are, as the name implies, provided by MySQL users. The MySQL documentation team is not responsible for, nor do they endorse, any of the information provided here.
Sign Up Login You must be logged in to post a comment.