> I realize you may be stuck with 7.3.x but you should be aware that 7.4 > is considerably faster, and 8.0 appears to be even faster yet.
There are a little bit incompatibility between 7.3 -8 , so rather difficult to change. > I would seriously consider upgrading, if at all possible. > > A few more hints. > > Random page cost is quite conservative if you have reasonably fast disks. > Speaking of fast disks, not all disks are created equal, some RAID > drives are quite slow (Bonnie++ is your friend here) > > Sort memory can be set on a per query basis, I'd consider lowering it > quite low and only increasing it when necessary. > > Which brings us to how to find out when it is necessary. > Turn logging on and turn on log_pid, and log_duration, then you will > need to sort through the logs to find the slow queries. In standard RH 9.0 , if I enable both of the log [pid , duration] , where could I look for the result of the log, and would it make the system to be slower? Amrit Thailand ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faqs/FAQ.html