Instance and SQL tuning with EM12c Cloud Control is so easy, it is not even much fun
anymore. Also, not every customer may have the appropriate license or database
edition, or all you have available remotely is a command-line login to a database.
This presentation showcases a few open-source database tuning tools such as Snapper
and ASH replacements that DBAs can use to gather and review metrics and wait events
from the command line and even in standard edition.