This alarm is raised when the Predictive Diagnostics Performance Modeling collector for this connection is not running.
Use Predictive Diagnostics - View | Options to schedule the collection of data.
The Performance Modeling collector gathers information on CPU, memory and disk I/O resources that may in the future affect database throughput and response time.
Note: The Performance Modeling Collector alarm indicates only whether the Oracle job used to collect Performance Modeling data is broken. It does not indicate when the data collection for Performance Modeling is disabled (set to zero).
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