"Overhead of virtual i/o I would say is far more than 5%" How much is a single block read, for example, for sequential reads is costing you on VM? How many IOPS are you getting? What are , typically, the top 5 timed events for a database running in VM? --------------- Thank you. On Mar 22, 2013, at 2:59 PM, "CRISLER, JON A" <JC1706@xxxxxxx> wrote: > Overhead of virtual i/o I would say is far more than 5%, -- //www.freelists.org/webpage/oracle-l