
             Description
             Enables instruments within Performance Schema
             matching the input pattern.
             Parameters
             in_pattern (VARCHAR(128)):
               A LIKE pattern match (using "%in_pattern%") of events to enable
             Example
             To enable all mutex instruments:
             mysql> CALL sys.ps_setup_enable_instrument('wait/synch/mutex');
             +-------------------------+
             | summary                 |
             +-------------------------+
             | Enabled 155 instruments |
             +-------------------------+
             1 row in set (0.02 sec)
             Query OK, 0 rows affected (0.02 sec)
             To enable just a specific TCP/IP based network IO instrument:
             mysql> CALL sys.ps_setup_enable_instrument('wait/io/socket/sql/server_tcpip_socket');
             +-----------------------+
             | summary               |
             +-----------------------+
             | Enabled 1 instruments |
             +-----------------------+
             1 row in set (0.00 sec)
             Query OK, 0 rows affected (0.00 sec)
             To enable all instruments:
             mysql> CALL sys.ps_setup_enable_instrument('');
             +-------------------------+
             | summary                 |
             +-------------------------+
             | Enabled 547 instruments |
             +-------------------------+
             1 row in set (0.01 sec)
             Query OK, 0 rows affected (0.01 sec)
            