Hi David, Sorry, I'm not onsite (UK based) so cant give you exact info, but pretty much Latch Free(librarycache) 50% CPU Time, 45% sequential read(much lower) 5% The latch frees only appear under CPU starvation. Under normal load its 90% to CPU Time. Tkprof output does not seem to show the considerable cpu time attributed by v$sqlarea to the package call. Cheers Adrian _____ From: David Sharples [mailto:davidsharples@xxxxxxxxx] Sent: 25 September 2006 20:33 To: ade.turner@xxxxxxxxx Cc: oracle-l@xxxxxxxxxxxxx Subject: Re: PLSQL CPU consumption what are you biggest wait / timed events