a quick look may be to process the trace with tkprof, but adding "sort=fchcpu" in the command line. Odds are the d.b.f.s.r. will appear on first-lines/top of the produced report (in my experience at least) regards, alvaro >Folks, >In a 10046 trace file taken at level 12, is there a way to find out >which index is experiencing most of the sequential reads? Thanks Amir -- //www.freelists.org/webpage/oracle-l