There is no such event, indeed it is a typical pitfall say when analysing a statspack report on a CPU bound DB server. The exception being when resource manager is used, then one can look at the time spent in 'resmgr:cpu quantum' wait event. Cheers, L. ________________________________ From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of amonte Sent: Wednesday, February 28, 2007 9:23 AM To: oracle-l@xxxxxxxxxxxxx Subject: cpu waits Hi all I was wondering what event does Oracle show when the process cannot get CPU cycles? TIA Alex