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

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.

CONSUMER_GROUP_ID

NUMBER

Consumer group object ID (a unique number, consistent across database shutdowns and startups)

CONSUMER_GROUP_NAME

VARCHAR2(30)

Name of the consumer group

CPU_CONSUMED_TIME

NUMBER

Cumulative amount of CPU time consumed by all sessions in the consumer group, in milliseconds

CPU_WAIT_TIME

NUMBER

Cumulative amount of time that sessions waited for CPU because of resource management, in milliseconds. This does not include waits due to latch or enqueue contention, I/O waits, and so on. When CPU resources are not being actively managed, this value is set to zero.

NUM_CPUS

NUMBER

Number of CPUs that the Resource Manager is utilizing. If instance caging is enabled, then this column is equal to the value of the CPU_COUNT initialization parameter. If instance caging is not enabled, then this column is equal to the total number of CPUs in the system.

RUNNING_SESSIONS_LIMIT

NUMBER

Maximum number of sessions in the consumer group that can run simultaneously. The value of this column is NUM_CPUS multiplied by the consumer group's MAX_UTILIZATION_LIMIT directive in the current Resource Manager plan.

AVG_RUNNING_SESSIONS

NUMBER

Average number of sessions in the consumer group that are currently running

AVG_WAITING_SESSIONS

NUMBER

Average number of sessions in the consumer group that are waiting for CPU due to resource management. When CPU resources are not being actively managed, this value is set to zero.

CPU_UTILIZATION_LIMIT

NUMBER

Maximum percentage of CPU that the consumer group can use at any time, with respect to the total number of CPUs in the system. The value of this column is RUNNING_SESSIONS_LIMIT divided by the number of CPUs in the system. If instance caging is enabled, then this value is derived using the CPU_COUNT initialization parameter.

AVG_CPU_UTILIZATION

NUMBER

Average percentage of CPU consumed by the consumer group, with respect to the total number of CPUs in the system

CPU_DECISIONS

NUMBER

Percentage of CPU decisions for which the consumer group was present. When CPU resources are not being actively managed, this value is set to zero. This column is deprecated.

CPU_DECISIONS_EXCLUSIVE

NUMBER

Percentage of the CPU decisions for which the consumer group was present and was the only consumer group present. When CPU resources are not being actively managed, this value is set to zero. This column is deprecated.

CPU_DECISIONS_WON

NUMBER

Percentage of the CPU decisions that the consumer group won. When CPU resources are not being actively managed, this value is set to zero. This column is deprecated.

IO_REQUESTS

NUMBER

I/O requests

IO_MEGABYTES

NUMBER

I/O megabytes

AVG_ACTIVE_PARALLEL_STMTS

NUMBER

The average number of parallel statements that were running during the 1-minute metric window

AVG_QUEUED_PARALLEL_STMTS

NUMBER

The average number of parallel statements that were queued during the 1-minute metric window

AVG_ACTIVE_PARALLEL_SERVERS

NUMBER

The average number of parallel servers that were actively running as part of a parallel statement during the 1-minute metric window

AVG_QUEUED_PARALLEL_SERVERS

NUMBER

The average number of parallel servers that were requested by queued parallel statements during the 1-minute metric window

PARALLEL_SERVERS_LIMIT

NUMBER

The number of parallel servers allowed to be used by this consumer group during the 1-minute metric window

PLAN_NAME

VARCHAR2(30)

Resource Manager plan name

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