With no criticism intended for you or DbFlash, wouldn't querying v$session_wait have given you the same information that DbFlash did to find the problem you give in your example? Jeremiah -----Original Message----- From: DEEDSD@xxxxxxxxxxxxxx I've been using it for about two years now... In the first month after we had purchased the product, we had critical performance issue pop up ... I installed DBFlash on the database and let it run for 20 minutes, and I had my answer, in lovely, graphical form that everyone involved could see. It turned out the problem was a rare Oracle bug the inundated the database with library cache latch and load lock waits... -- //www.freelists.org/webpage/oracle-l