9.100 V$SYSTEM_EVENT
V$SYSTEM_EVENT
displays information on total waits for an event. Note that the TIME_WAITED
and AVERAGE_WAIT
columns will contain a value of zero on those platforms that do not support a fast timing mechanism. If you are running on one of these platforms and you want this column to reflect true wait times, then you must set TIMED_STATISTICS
to TRUE
in the parameter file; doing this will have a small negative effect on system performance.
See Also:
Column | Datatype | Description |
---|---|---|
|
|
Name of the wait event; derived statistic name from See Also: "Oracle Wait Events" |
|
|
Total number of waits for the event |
|
|
Total number of timeouts for the event |
|
|
Total amount of time waited for the event (in hundredths of a second) |
|
|
Average amount of time waited for the event (in hundredths of a second) |
|
|
Total amount of time waited for the event (in microseconds) |
|
|
Total number of waits for the event, from foreground sessions |
|
|
Total number of timeouts for the event, from foreground sessions |
|
|
Total amount of time waited for the event, from foreground sessions (in hundredths of a second) |
|
|
Average amount of time waited for the event, from foreground sessions (in hundredths of a second) |
|
|
Total amount of time waited for the event, from foreground sessions (in microseconds) |
|
|
Identifier of the wait event |
|
|
Identifier of the wait class of the wait event |
|
|
Number of the wait class of the wait event |
|
|
Name of the wait class of the wait event |
|
|
The ID of the container to which the data pertains. Possible values include:
|
Note:
This view returns instance-wide data and a value of 0
in the CON_ID
column when queried from the root of a CDB.