The Clone Plugin WHERE EVENT_NAME LIKE ’stage/innodb/clone%’; +--------------------------------+----------------+----------------+ | EVENT_NAME | WORK_COMPLETED | WORK_ESTIMATED | +--------------------------------+----------------+----------------+ | stage/innodb/clone (file copy) | 301 | 301 | | stage/innodb/clone (page copy) | 0 | 0 | | stage/innodb/clone (redo copy) | 1 | 1 | +--------------------------------+----------------+----------------+ mysql>  SELECT * FROM performance_schema.setup_instruments WHERE NAME LIKE WHERE NAME LIKE ’%clone%’; +----------------------------------------------+---------+ | NAME | ENABLED | +----------------------------------------------+---------+ | wait/synch/mutex/innodb/clone_snapshot_mutex | NO | | wait/synch/mutex/innodb/clone_sys_mutex | NO | | wait/synch/mutex/innodb/clone_task_mutex | NO | | wait/io/file/innodb/innodb_clone_file | YES | | stage/innodb/clone (file copy) | YES | | stage/innodb/clone (redo copy) | YES | | stage/innodb/clone (page copy) | YES | | statement/abstract/clone | YES | | statement/clone/local | YES | | statement/clone/client | YES | | statement/clone/server | YES | | memory/innodb/clone | YES | | memory/clone/data | YES | +----------------------------------------------+---------+ 1126 Performance Schema stage events track steps that occur during the statement-execution process. Clone stage event instruments include: For information about monitoring  InnoDB  mutex waits, see Section 15.16.2, “Monitoring InnoDB Mutex Waits Using Performance Schema” . For information about monitoring wait events in general, see Section 27.12.4, “Performance Schema Wait Event Tables” . Performance schema wait instruments track events that take time. Clone wait event instruments include: Performance Schema provides instrumentation for advanced performance monitoring of clone operations. To view the available clone instrumentation, issue the following query: Monitoring Cloning Operations Using Performance Schema Clone Instrumentation Stage Instruments Wait Instruments • wait/synch/mutex/innodb/clone_snapshot_mutex : Tracks wait events for the clone snapshot mutex, which synchronizes access to the dynamic snapshot object (on the donor and recipient) between multiple clone threads. • wait/synch/mutex/innodb/clone_sys_mutex : Tracks wait events for the clone sys mutex. There is one clone system object in a MySQL server instance. This mutex synchronizes access to the clone system object on the donor and recipient. It is acquired by clone threads and other foreground and background threads. • wait/synch/mutex/innodb/clone_task_mutex : Tracks wait events for the clone task mutex, used for clone task management. The  clone_task_mutex  is acquired by clone threads. • wait/io/file/innodb/innodb_clone_file : Tracks all I/O wait operations for files that clone operates on.