performance_timers

Overview

A description for this Performance-schema Table has not yet been added to this Documentation.

See also: Performance Schema in 10.6 ES, in 10.5 ES, and in 10.4 ES

DETAILS

SCHEMA

CREATE TABLE `performance_timers` (
  `TIMER_NAME` enum('CYCLE','NANOSECOND','MICROSECOND','MILLISECOND','TICK') NOT NULL COMMENT 'Time name, used in the setup_timers table.',
  `TIMER_FREQUENCY` bigint(20) DEFAULT NULL COMMENT 'Number of timer units per second. Dependent on the processor speed.',
  `TIMER_RESOLUTION` bigint(20) DEFAULT NULL COMMENT 'Number of timer units by which timed values increase each time.',
  `TIMER_OVERHEAD` bigint(20) DEFAULT NULL COMMENT 'Minimum timer overhead, determined during initialization by calling the timer 20 times and selecting the smallest value. Total overhead will be at least double this, as the timer is called at the beginning and end of each timed event.'
)

CHANGE HISTORY

Release Series

History

10.6 Enterprise

  • Present starting in MariaDB Enterprise Server 10.6.4-1.

  • Schema changed in MariaDB Enterprise Server 10.6.5-2: ...

10.5 Enterprise

  • Present starting in MariaDB Enterprise Server 10.5.3-1.

  • Schema changed in MariaDB Enterprise Server 10.5.13-9: ...

10.4 Enterprise

  • Present starting in MariaDB Enterprise Server 10.4.6-1.

  • Schema changed in MariaDB Community Server 10.4.22-14: ...

EXTERNAL REFERENCES