8.139 V$CON_SYSTEM_WAIT_CLASS

V$CON_SYSTEM_WAIT_CLASS displays the time totals for each registered wait class in a container.

Column Datatype Description

WAIT_CLASS_ID

NUMBER

Identifier of the wait class

WAIT_CLASS#

NUMBER

Number of the wait class

WAIT_CLASS

VARCHAR2(64)

Name of the wait class

TOTAL_WAITS

NUMBER

Total number of waits from this wait class

TIME_WAITED

NUMBER

Total amount of time spent in waits from this wait class (in hundredths of a second)

TIME_WAITED_MICRO

NUMBER

Total amount of time spent in waits from this wait class (in microseconds)

CPU

NUMBER

Total amount of CPU time consumed while implementing waits from this wait class (in microseconds)

TOTAL_WAITS_FG

NUMBER

Total number of waits from this wait class, from foreground sessions

TIME_WAITED_FG

NUMBER

Total amount of time spent in waits from this wait class, from foreground sessions (in hundredths of a second)

TIME_WAITED_MICRO_FG

NUMBER

Total amount of time spent in waits from this wait class, from foreground sessions (in microseconds)

CPU_FG

NUMBER

Total amount of CPU time consumed while implementing waits from this wait class, from foreground sessions (in microseconds)

CON_ID

NUMBER

When queried from a non-CDB, time totals for each registered wait class in that instance are returned, and the CON_ID value is 0.

When queried from the root of a CDB, time totals for each registered wait class in every container is returned, and the CON_ID value indicates the container to which the time total belong.

When queried from a PDB, time totals for each registered wait class in that PDB are returned, and the CON_ID value is the container ID for that PDB.