Scott, just an add-on questions on top of the previous mail: Did you do tracing with level 10046 or just queried system/session stats? Which system/session wait you are saying is the problem here? How did you get to the point to look wait_time for v$latch and pointing these latches are the biggest problem (from which waits, statistics)? Regards, Zoran __________________________________ Do you Yahoo!? Yahoo! Mail - now with 250MB free storage. Learn more. http://info.mail.yahoo.com/mail_250 -- //www.freelists.org/webpage/oracle-l