1. Database Reference
  2. Dynamic Performance Views
  3. Dynamic Performance (V$) Views: V$SCHEDULER_RUNNING_JOBS to V$ZONEMAP_USAGE_STATS
  4. V$WAITCLASSMETRIC

9.131 V$WAITCLASSMETRIC

V$WAITCLASSMETRIC displays metric values of wait classes for the most recent 60-second interval. A history of the last one hour will be kept in the system.

Column Datatype Description

BEGIN_TIME

DATE

Begin time of the interval

END_TIME

DATE

End time of the interval

INTSIZE_CSEC

NUMBER

Interval size (in hundredths of a second)

WAIT_CLASS#

NUMBER

Number of the class of the wait event

WAIT_CLASS_ID

NUMBER

Identifier of the class of the wait event

AVERAGE_WAITER_COUNT

NUMBER

Average waiter count

DBTIME_IN_WAIT

NUMBER

Percent of database time spent in the wait

TIME_WAITED

NUMBER

Time waited during the interval (in hundredths of a second)

WAIT_COUNT

NUMBER

Number of times waited

TIME_WAITED_FG

NUMBER

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

WAIT_COUNT_FG

NUMBER

Number of times foreground processes waited

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