Dan Armbrust <daniel.armbrust.list@xxxxxxxxx> writes: > However, once the checkpoint process begins, I get a whole flood of > queries that take between 1 and 10 seconds to complete. My throughput > crashes to near nothing. The checkpoint takes between 45 seconds and > a minute to complete. You sure this is 8.3? It should spread out checkpoints over a couple of minutes by default. [thinks...] Maybe you need to increase checkpoint_segments some more. If it's forcing the checkpoint in order to hold down the number of WAL segments used up, that would explain a fast checkpoint. regards, tom lane -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general