Names given for filtering operations can be as specific or general as required. To indicate a single instrument or consumer, specify its name in full:
mysql>UPDATE setup_instrumentsSET ENABLED = 'NO'WHERE NAME = 'wait/synch/mutex/myisammrg/MYRG_INFO::mutex';mysql>UPDATE setup_consumersSET ENABLED = 'NO' WHERE NAME = 'file_summary_by_instance';
To specify a group of instruments or consumers, use a pattern that matches the group members:
mysql>UPDATE setup_instrumentsSET ENABLED = 'NO'WHERE NAME LIKE 'wait/synch/mutex/%';mysql>UPDATE setup_consumersSET ENABLED = 'NO' WHERE NAME LIKE '%history%';
If you use a pattern, it should be chosen so that it matches all the items of interest and no others. For example, to select all file I/O instruments, it is better to use a pattern that includes the entire instrument name prefix:
... WHERE NAME LIKE 'wait/io/file/%';
A pattern of '%/file/%' will match other
instruments that have a component of '/file/'
anywhere in the name. Even less suitable is the pattern
'%file%' because it will match instruments
with 'file' anywhere in the name, such as
wait/synch/mutex/sql/LOCK_des_key_file.
To check which instrument or consumer names a pattern matches, perform a simple test:
mysql>SELECT NAME FROM setup_instruments WHERE NAME LIKE 'mysql>pattern';SELECT NAME FROM setup_consumers WHERE NAME LIKE 'pattern';
For information about the types of names that are supported, see Section 22.5, “Performance Schema Instrument Naming Conventions”.