V$FILEMETRIC_HISTORY

V$FILEMETRIC_HISTORY displays values of file metrics for all intervals in the last one hour.

Column	Datatype	Description
`BEGIN_TIME`	`DATE`	Begin time of the interval
`END_TIME`	`DATE`	End time of the interval
`INTSIZE_CSEC`	`NUMBER`	Interval size (in hundredths of a second)
`FILE_ID`	`NUMBER`	File number
`CREATION_TIME`	`NUMBER`	Timestamp of the file creation
`AVERAGE_READ_TIME`	`NUMBER`	Average file read time (in hundredths of a second)
`AVERAGE_WRITE_TIME`	`NUMBER`	Average file write time (in hundredths of a second)
`PHYSICAL_READS`	`NUMBER`	Number of physical reads
`PHYSICAL_WRITES`	`NUMBER`	Number of physical writes
`PHYSICAL_BLOCK_READS`	`NUMBER`	Number of physical block reads
`PHYSICAL_BLOCK_WRITES`	`NUMBER`	Number of physical block writes
`CON_ID`	`NUMBER`	The ID of the container to which the data pertains. 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