In your organization the Oracle Database 11g installation includes the Oracle Diagnostic Pack. In your database, the STATISTICS_LEVEL and CONTROL_MANAGEMENT_PACK_ACCESS parameters, and the snapshot…

In your organization the Oracle Database 11g installation includes the Oracle Diagnostic Pack. In your database, the STATISTICS_LEVEL and CONTROL_MANAGEMENT_PACK_ACCESS parameters, and the snapshot interval and retention period have been set to default values. Two users of your database have complained that a particular job or session is very slow for a transient interval of about 10 minutes during the day when the rest of the instance is performing as usual. Where would you begin the investigation of this performance issue?