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Oracle® Database Reference
11g Release 2 (11.2)

E40402-12
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V$IOSTAT_CONSUMER_GROUP

V$IOSTAT_CONSUMER_GROUP displays disk I/O statistics for consumer groups. If the resource manager is enabled, then I/O statistics for all consumer groups that are part of the currently enabled resource plan are captured.

Column Datatype Description
CONSUMER_GROUP_ID NUMBER Consumer Group ID
SMALL_READ_MEGABYTES NUMBER Number of single block megabytes read
SMALL_WRITE_MEGABYTES NUMBER Number of single block megabytes written
LARGE_READ_MEGABYTES NUMBER Number of multiblock megabytes read
LARGE_WRITE_MEGABYTES NUMBER Number of multiblock megabytes written
SMALL_READ_REQS NUMBER Number of single block read requests
SMALL_WRITE_REQS NUMBER Number of single block write requests
LARGE_READ_REQS NUMBER Number of multiblock read requests
LARGE_WRITE_REQS NUMBER Number of multiblock write requests
NUMBER_OF_WAITS NUMBER Number of I/O waits by consumer group
WAIT_TIME NUMBER Total wait time (in milliseconds)