Hey Kellyn, > Because I'm able to > stripe across the tempfiles in each of the temp tablespaces instead of one > tempfile sequentially, we saw the following improvements How exactly are you using groups to stripe? The only thing I can think of is PQ, although I have yet to test it. MOS 245645.1 and my own quick single-threaded test indicate that only one TS is a group is used by any one process. Thanks! Rich -- //www.freelists.org/webpage/oracle-l