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MySQL 5.7 Reference Manual  / ...  / MySQL sys Schema  / sys Schema Object Reference  / sys Schema Stored Procedures  /  The ps_setup_enable_instrument() Procedure

26.4.4.10 The ps_setup_enable_instrument() Procedure

Enables Performance Schema instruments with names that contain the argument. Produces a result set indicating how many instruments were enabled. Already enabled instruments do not count.

Parameters

  • in_pattern VARCHAR(128): The value used to match instrument names, which are identified by using%in_pattern% as an operand for aLIKE pattern match.

    A value of'' matches all instruments.

Example

Enable a specific instrument:

mysql> CALL sys.ps_setup_enable_instrument('wait/lock/metadata/sql/mdl');+----------------------+| summary              |+----------------------+| Enabled 1 instrument |+----------------------+

Enable all mutex instruments:

mysql> CALL sys.ps_setup_enable_instrument('mutex');+-------------------------+| summary                 |+-------------------------+| Enabled 177 instruments |+-------------------------+