7.135 V$CON_EVENT_HISTOGRAM_MICRO
V$CON_EVENT_HISTOGRAM_MICRO
displays a histogram of the number of waits, the maximum wait, and total wait time on an event basis for a container, in microseconds. The histogram has buckets of time intervals from < 1 us, < 2 us, < 4 us, < 8 us, ... < 231 us, < 232 us, and >= 232 us.
The histogram will not be filled unless the TIMED_STATISTICS
initialization parameter is set to true
.
Column | Datatype | Description |
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Event number |
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Name of the event |
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A human readable time string which is converted from |
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Amount of time the bucket represents (in microseconds). If the duration = |
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Number of waits of the duration belonging to the bucket of the histogram |
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Indicates the last time the bucket was updated (the ending timestamp of the last wait falling into the bucket's duration) |
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When queried from a non-CDB, the wait event data in that instance are returned, and the When queried from the root of a CDB, the wait event data in every container is returned, and the When queried from a PDB, wait event data in that PDB are returned, and the |