MySQL 8.4 Release Notes
Disables Performance Schema instruments with names that contain the argument. Produces a result set indicating how many instruments were disabled. Already disabled instruments do not count.
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.
Disable a specific instrument:
Press CTRL+C to copymysql> CALL sys.ps_setup_disable_instrument('wait/lock/metadata/sql/mdl'); +-----------------------+ | summary | +-----------------------+ | Disabled 1 instrument | +-----------------------+
Disable all mutex instruments:
Press CTRL+C to copymysql> CALL sys.ps_setup_disable_instrument('mutex'); +--------------------------+ | summary | +--------------------------+ | Disabled 177 instruments | +--------------------------+