ORATOPĀ is a utility similar to the unix OS utility top which gives a overview of database performance and can be used in combination with top to get a more complete overview of system performance. To download the utility you need to go to the your Oracle Metalink account and look for Doc ID 1500864.1 or you can download it by clicking this link Download oratop Link To learn how to play around with oratop download the pdf file provided at this link Download Link