Thanks guys, I'm studying each of your responses and am going to start to experiement. Unfortunately, I don't have another box with similar specs to do a perfect experiment with, but I think I'm going to go ahead and open a service window to ungrade the box to FBSD6.0 and apply some other changes. It also gives me the chance to go from 8.0.1 to 8.1 series which I been wanting to do as well. Thanks guys and I will see if any of your suggestions make a noticable difference. I also have been looking at log result of slow queries and making necessary indexes to make those go faster. -Kenji On Sat, Mar 18, 2006 at 12:29:17AM +0100, Claus Guttesen wrote: > > 4. Are there any other settings in the conf file I could try to tweak? > > One more thing :-) > > I stumbled over this setting, this made the db (PG 7.4.9) make use of > the index rather than doing a sequential scan and it reduced a query > from several minutes to some 20 seconds. > > random_page_cost = 2 (original value was 4). > > Another thing you ought to do is to to get the four-five most used > queries and do an explain analyze in these. Since our website wasn't > prepared for this type of statistics I simply did a tcpdump, grep'ed > all select's, sorted them and sorted them unique so I could see which > queries were used most. > > regards > Claus
