DBA_HIST_MUTEX_SLEEP

DBA_HIST_MUTEX_SLEEP displays mutex sleep summary historical statistics information.

Column	Datatype	NULL	Description
`SNAP_ID`	`NUMBER`	`NOT NULL`	Unique snapshot ID
`DBID`	`NUMBER`	`NOT NULL`	Databse identifier for the snapshot
`INSTANCE_NUMBER`	`NUMBER`	`NOT NULL`	Instance number for the snapshot
`MUTEX_TYPE`	`VARCHAR2(32)`	`NOT NULL`	Mutex type
`LOCATION`	`VARCHAR2(40)`	`NOT NULL`	???
`SLEEPS`	`NUMBER`		???
`WAIT_TIME`	`NUMBER`		???