`performance_schema`.`performance_timers`

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performance_timers

#	Name	Type	Collation	Null	Default	Comments
1	TIMER_NAME	enum('CYCLE', 'NANOSECOND', 'MICROSECOND', 'MILLIS...	utf8_general_ci	No	None	Time name, used in the setup_timers table.
2	TIMER_FREQUENCY	bigint(20)		Yes	NULL	Number of timer units per second. Dependent on the processor speed.
3	TIMER_RESOLUTION	bigint(20)		Yes	NULL	Number of timer units by which timed values increase each time.
4	TIMER_OVERHEAD	bigint(20)		Yes	NULL	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.

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Information

Row statistics
Format	static
Collation	utf8_general_ci
Rows	5
Row size	0 B
Next autoindex	0
Creation	Apr 06, 2026 at 04:51 PM
Last update	Apr 06, 2026 at 04:51 PM
Last check	Apr 06, 2026 at 04:51 PM