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Oracle® Database Reference
11g Release 2 (11.2)

E40402-14
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V$RSRC_CONS_GROUP_HISTORY

V$RSRC_CONS_GROUP_HISTORY displays a history of consumer group statistics for each entry in V$RSRC_PLAN_HISTORY that has a non-NULL plan.

Column Datatype Description
SEQUENCE# NUMBER A sequential counter that uniquely describes the V$RSRC_PLAN_HISTORY entry to which these consumer group statistics apply. When the instance is restarted, this value is reset to zero.
ID NUMBER Consumer group object ID (a unique number, consistent across database shutdowns and startups)
NAME VARCHAR2(30) Name of the consumer group
REQUESTS NUMBER Cumulative number of requests that were executed in the consumer group
CPU_WAIT_TIME NUMBER Cumulative amount of time that sessions waited for CPU because of resource management. This does not include waits due to latch or enqueue contention, I/O waits, and so on.
CPU_WAITS NUMBER Cumulative number of times all sessions in the consumer group had to wait for CPU because of resource management. This does not include waits due to latch or enqueue contention, I/O waits, and so on.
CONSUMED_CPU_TIME NUMBER Cumulative amount of CPU time consumed by all sessions in the consumer group (in milliseconds)
YIELDS NUMBER Cumulative number of times that sessions in the consumer group had to yield CPU to other sessions because of quantum expiration
CPU_DECISIONS NUMBER Percentage of CPU decisions for which the consumer group was present
CPU_DECISIONS_EXCLUSIVE NUMBER Percentage of the CPU decisions for which the consumer group was present and was the only consumer group present
CPU_DECISIONS_WON NUMBER Percentage of the CPU decisions that the consumer group won
ACTIVE_SESS_LIMIT_HIT NUMBER Number of times that sessions in the consumer group were queued because the consumer group reached its active session limit
UNDO_LIMIT_HIT NUMBER Number of times that queries in the consumer group were cancelled because the consumer group reached its UNDO_POOL limit
SWITCHES_IN_CPU_TIME NUMBER Number of switches into the consumer group because of the Resource Manager plan's SWITCH_TIME limit
SWITCHES_OUT_CPU_TIME NUMBER Number of switches out of the consumer group because of the Resource Manager plan's SWITCH_TIME limit
SWITCHES_IN_IO_MEGABYTES NUMBER Number of switches into the consumer group because of the Resource Manager plan's SWITCH_IO_MEGABYTES limit
SWITCHES_OUT_IO_MEGABYTES NUMBER Number of switches out of the consumer group because of the Resource Manager plan's SWITCH_IO_MEGABYTES limit
SWITCHES_IN_IO_REQUESTS NUMBER Number of switches into the consumer group because of the Resource Manager plan's SWITCH_IO_REQS limit
SWITCHES_OUT_IO_REQUESTS NUMBER Number of switches out of the consumer group because of the Resource Manager plan's SWITCH_IO_REQS limit
SQL_CANCELED NUMBER Number of times that SQL queries running in the consumer group were aborted because they exceeded the Resource Manager plan's SWITCH_TIME limit and CANCEL_SQL was specified as the Resource Manager plan's SWITCH_GROUP
ACTIVE_SESS_KILLED NUMBER Number of times that sessions running in the consumer group were terminated because they exceeded the Resource Manager plan's SWITCH_TIME limit and KILL_SESSION was specified as the Resource Manager plan's SWITCH_GROUP
IDLE_SESS_KILLED NUMBER Number of times that sessions in the consumer group were killed because they were idle for too long (reached MAX_IDLE_TIME)
IDLE_BLKR_SESS_KILLED NUMBER Number of times that sessions in the consumer group were killed because they were idle too long (reached MAX_IDLE_BLOCKER_TIME) and were blocking other sessions
QUEUED_TIME NUMBER Total amount of time that sessions in the consumer group have spent in the QUEUED state because of the active session limit (in milliseconds)
QUEUE_TIME_OUTS NUMBER Number of times that requests from sessions in the consumer group timed out because they were queued for too long (reached QUEUEING_P1)
IO_SERVICE_TIME NUMBER Cumulative I/O wait time (in milliseconds)
IO_SERVICE_WAITS NUMBER Total number of wait requests
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_REQUESTS NUMBER Number of single block read requests
SMALL_WRITE_REQUESTS NUMBER Number of single block write requests
LARGE_READ_REQUESTS NUMBER Number of multiblock read requests
LARGE_WRITE_REQUESTS NUMBER Number of multiblock write requests
PQS_COMPLETEDFoot 1  NUMBER Total number of completed parallel statements in the consumer group
PQ_SERVERS_USEDFootref 1 NUMBER Total number of parallel servers used by completed parallel statements in the consumer group
PQS_QUEUEDFootref 1 NUMBER Number of times that sessions in the consumer group were queued when trying to run parallel statements
PQ_ACTIVE_TIMEFootref 1 NUMBER Cumulative sum of the parallel active times for all completed parallel statements in the consumer group (in milliseconds)
PQ_QUEUED_TIMEFootref 1 NUMBER Total amount of time that sessions in the consumer group were queued when trying to run parallel statements (in milliseconds)
PQ_QUEUE_TIME_OUTSFootref 1 NUMBER Number of times that parallel statements from sessions in the consumer group timed out because their queue time exceeded the Resource Manager plan's PARALLEL_QUEUE_TIMEOUT limit

Footnote 1 This column is available starting with Oracle Database 11g Release 2 (11.2.0.2).