Christopher Petrilli <[EMAIL PROTECTED]> writes: > I have a unique scenerio. My DB is under "continual load", meaning > that I am constantly using COPY to insert new data into the DB. There > is no "quiet period" for the database, at least not for hours on end. > Normally, checkpoint_segments can help absorb some of that, but my > experience is that if I crank the number up, it simply delays the > impact, and when it occurs, it takes a VERY long time (minutes) to > clear.
If you are using 8.0, you can probably alleviate the problem by making the bgwriter more aggressive. I don't have any immediate recommendations for specific settings though. A small checkpoint_segments setting is definitely bad news for performance under heavy load. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 4: Have you searched our list archives? http://archives.postgresql.org