DBA_HIST_PROCESS_WAITTIME

DBA_HIST_PROCESS_WAITTIME displays CPU and wait time by process types.

Column	Datatype	NULL	Description
SNAP_ID	NUMBER	NOT NULL	Unique snapshot ID
DBID	NUMBER	NOT NULL	Database ID for the snapshot
INSTANCE_NUMBER	NUMBER	NOT NULL	Instance number for the snapshot
PROCESS_TYPE	VARCHAR2(5)	NOT NULL	Process type
DESCRIPTION	VARCHAR2(64)	NOT NULL	Process description
WAIT_CLASS_TYPE	VARCHAR2(64)	NOT NULL	Type of wait class
VALUE	NUMBER		Wait time or CPU used time in milliseconds
CON_DBID	NUMBER		The database ID of the PDB for the process
CON_ID	NUMBER		The ID of the container that CON_DBID identifies. Possible values include: 0: This value is used for rows containing data that pertain to the entire CDB. This value is also used for rows in non-CDBs. 1: This value is used for rows containing data that pertain to only the root n: Where n is the applicable container ID for the rows containing data