Discussion Thread: Diagnosing Database Perf using AWR Reports [Document ID 1359094.1]
This thread can be used for discussions associated with : FAQ: How to Use AWR Reports to Diagnose Database Performance Issues [ID 1359094.1]
Additionally there is a thread discussing an article: AWR Report Interpretation Checklist for Diagnosing Database Performance Issues (Doc ID 1628089.1) which you can find here.