wait_classes_global_by_avg_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 `wait_classes_global_by_avg_latency` AS SELECT
  substring_index(`performance_schema`.`events_waits_summary_global_by_event_name`.`EVENT_NAME`,'/',3) AS `event_class`,
  sum(`performance_schema`.`events_waits_summary_global_by_event_name`.`COUNT_STAR`) AS `total`,
  `sys`.`format_time`(cast(sum(`performance_schema`.`events_waits_summary_global_by_event_name`.`SUM_TIMER_WAIT`) as unsigned)) AS `total_latency`,
  `sys`.`format_time`(min(`performance_schema`.`events_waits_summary_global_by_event_name`.`MIN_TIMER_WAIT`)) AS `min_latency`,
  `sys`.`format_time`(ifnull(sum(`performance_schema`.`events_waits_summary_global_by_event_name`.`SUM_TIMER_WAIT`) / nullif(sum(`performance_schema`.`events_waits_summary_global_by_event_name`.`COUNT_STAR`),0),0)) AS `avg_latency`,
  `sys`.`format_time`(cast(max(`performance_schema`.`events_waits_summary_global_by_event_name`.`MAX_TIMER_WAIT`) as unsigned)) AS `max_latency`
FROM `performance_schema`.`events_waits_summary_global_by_event_name` where `performance_schema`.`events_waits_summary_global_by_event_name`.`SUM_TIMER_WAIT` > 0 and `performance_schema`.`events_waits_summary_global_by_event_name`.`EVENT_NAME` <> 'idle' group by substring_index(`performance_schema`.`events_waits_summary_global_by_event_name`.`EVENT_NAME`,'/',3) order by ifnull(sum(`performance_schema`.`events_waits_summary_global_by_event_name`.`SUM_TIMER_WAIT`) / nullif(sum(`performance_schema`.`events_waits_summary_global_by_event_name`.`COUNT_STAR`),0),0) 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