8.14 V$IOFUNCMETRIC

V$IOFUNCMETRIC displays I/O statistics information by database function for the most recent time interval period.

Column Datatype Description

BEGIN_TIME

DATE

Begin time for the metric value

END_TIME

DATE

End time for the metric value

INTSIZE_CSEC

NUMBER

Size of the time period

FUNCTION_ID

NUMBER

Function ID

FUNCTION_NAME

VARCHAR2(18)

Function name

SMALL_READ_MBPS

NUMBER

Single block megabytes read per second

SMALL_WRITE_MBPS

NUMBER

Single block megabytes written per second

LARGE_READ_MBPS

NUMBER

Multiblock megabytes read per second

LARGE_WRITE_MBPS

NUMBER

Multiblock megabytes written per second

SMALL_READ_IOPS

NUMBER

Single block read requests per second

SMALL_WRITE_IOPS

NUMBER

Single block write requests per second

LARGE_READ_IOPS

NUMBER

Multiblock read requests per second

LARGE_WRITE_IOPS

NUMBER

Multiblock write requests per second

AVG_WAIT_TIME

NUMBER

Average wait time (in milliseconds)

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