x$io_by_thread_by_latency

Overview

In 10.6 ES, 10.6 CS:

A description for this sys Table has not yet been added to this Documentation.

In 10.5 ES, 10.5 CS, 10.4 ES, 10.4 CS, 10.3 ES, 10.3 CS, 10.2 ES, 10.2 CS:

Not present

See also: Sys Database Tables for MariaDB Enterprise Server 10.6 and in 10.6 CS

DETAILS

SCHEMA

VIEW `x$io_by_thread_by_latency` AS SELECT
  if(`performance_schema`.`threads`.`PROCESSLIST_ID` is null,substring_index(`performance_schema`.`threads`.`NAME`,'/',-1),concat(`performance_schema`.`threads`.`PROCESSLIST_USER`,'@',`performance_schema`.`threads`.`PROCESSLIST_HOST`)) AS `user`,
  sum(`performance_schema`.`events_waits_summary_by_thread_by_event_name`.`COUNT_STAR`) AS `total`,
  sum(`performance_schema`.`events_waits_summary_by_thread_by_event_name`.`SUM_TIMER_WAIT`) AS `total_latency`,
  min(`performance_schema`.`events_waits_summary_by_thread_by_event_name`.`MIN_TIMER_WAIT`) AS `min_latency`,
  avg(`performance_schema`.`events_waits_summary_by_thread_by_event_name`.`AVG_TIMER_WAIT`) AS `avg_latency`,
  max(`performance_schema`.`events_waits_summary_by_thread_by_event_name`.`MAX_TIMER_WAIT`) AS `max_latency`,
  `performance_schema`.`events_waits_summary_by_thread_by_event_name`.`THREAD_ID` AS `thread_id`,
  `performance_schema`.`threads`.`PROCESSLIST_ID` AS `processlist_id`
FROM (`performance_schema`.`events_waits_summary_by_thread_by_event_name` left join `performance_schema`.`threads` on(`performance_schema`.`events_waits_summary_by_thread_by_event_name`.`THREAD_ID` = `performance_schema`.`threads`.`THREAD_ID`)) where `performance_schema`.`events_waits_summary_by_thread_by_event_name`.`EVENT_NAME` like 'wait/io/file/%' and `performance_schema`.`events_waits_summary_by_thread_by_event_name`.`SUM_TIMER_WAIT` > 0 group by `performance_schema`.`events_waits_summary_by_thread_by_event_name`.`THREAD_ID`,`performance_schema`.`threads`.`PROCESSLIST_ID`,if(`performance_schema`.`threads`.`PROCESSLIST_ID` is null,substring_index(`performance_schema`.`threads`.`NAME`,'/',-1),concat(`performance_schema`.`threads`.`PROCESSLIST_USER`,'@',`performance_schema`.`threads`.`PROCESSLIST_HOST`)) order by sum(`performance_schema`.`events_waits_summary_by_thread_by_event_name`.`SUM_TIMER_WAIT`) desc

CHANGE HISTORY

Release Series

History

10.6 Enterprise

  • Added in MariaDB Enterprise Server 10.6.4-1.

10.6 Community

  • Added in MariaDB Community Server 10.6.0.

10.5 Enterprise

  • Not present.

10.5 Community

  • Not present.

10.4 Enterprise

  • Not present.

10.4 Community

  • Not present.

10.3 Enterprise

  • Not present.

10.3 Community

  • Not present.

10.2 Enterprise

  • Not present.

10.2 Community

  • Not present.

EXTERNAL REFERENCES