Coskan Gundogar and Karl Arao have written two interesting articles about Oracle performance analysis and visualization, check these out!
Note that in March I will be releasing PerfSheet v3.0, which will have lots of improvements! ;-)
NB! After a 1.5 year break, this year’s only Advanced Oracle Troubleshooting training class (updated with Oracle 12c content) takes place on 16-20 November & 14-18 December 2015, so sign up now if you plan to attend this year!