A DBA or the application developer is to provide efficient, well-performing applications with good response time. In order for the application to provide a good response, the system, database, and SQL queries should be welltuned. Systems are tuned based on data collected during periods of poor performance; the evidence and the data collected may provide an indication of where the actual problem resides.
You can specify the type of files you want, for your gadget.RAC Performance Tuning Vol 1: Oracle Performance Tuning | Mrs Ammulya Tokala. Just read it with an open mind because none of us really know.
