V$SERVICEMETRIC_HISTORY

V$SERVICEMETRIC_HISTORY displays a recent history of the metric values measured in predefined time interval periods for services executing inside the database. Service metrics are measured in 5-second and 1-minute intervals.

Column	Datatype	Description
`BEGIN_TIME`	`DATE`	Begin timestamp for the interval period
`END_TIME`	`DATE`	End timestamp for the interval period
`INTSIZE_CSEC`	`NUMBER`	Interval size (in hundredths of a second)
`GROUP_ID`	`NUMBER`	Group ID for the service metric group
`SERVICE_NAME_HASH`	`NUMBER`	Service name hash
`SERVICE_NAME`	`VARCHAR2(64)`	Service name
`CTMHASH`	`NUMBER`	Service create timestamp hash value
`ELAPSEDPERCALL`	`NUMBER`	Elapsed time per call (in microseconds). This column is deprecated in favor of the `DBTIMEPERCALL` column.
`CPUPERCALL`	`NUMBER`	CPU time per call (in microseconds)
`DBTIMEPERCALL`	`NUMBER`	Elapsed time per call (in microseconds)
`CALLSPERSEC`	`NUMBER`	Number of user calls per second
`DBTIMEPERSEC`	`NUMBER`	DB time per second