Tatsuo Ishii <ishii@xxxxxxxxxxxx> writes: >>> 18% in s_lock is definitely bad :-(. Were you able to determine which >>> LWLock(s) are accounting for the contention? >> >> Yes. We were interested in that too. Some people did addtional tests >> to determin that. I don't have the report handy now. I will report >> back next week. > Sorry for the delay. Finally I got the oprofile data. It's > huge(34MB). If you are interested, I can put somewhere. Please let me > know. Yes, please. regards, tom lane