Performance Schema setup_timers Table
Description
The setup_timers table shows the currently selected event timers.
It contains the following columns:
| Column | Description |
|---|---|
NAME | Type of instrument the timer is used for. |
TIMER_NAME | Timer applying to the instrument type. Can be modified. |
The TIMER_NAME value can be changed to choose a different timer, and can be any non-NULL value in the performance_timers.TIMER_NAME column.
If you modify the table, monitoring is immediately affected, and currently monitored events would use a combination of old and new timers, which is probably undesirable. It is best to reset the Performance Schema statistics if you make changes to this table.
Example
SELECT * FROM setup_timers; +-----------+-------------+ | NAME | TIMER_NAME | +-----------+-------------+ | idle | MICROSECOND | | wait | CYCLE | | stage | NANOSECOND | | statement | NANOSECOND | +-----------+-------------+
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