On Thu, Aug 28, 2008 at 02:44:08PM +0300, Devrim GÜNDÜZ wrote: > After restart, OS and PostgreSQL caches are cleaned up -- it might also > slow down PostgreSQL a bit. I'll bet this is the right answer -- before, you were mostly getting things out of cache (memory), and right now everything has to come off the disk. Does iostat seem to confirm that? Are you swapping, by any chance? A -- Andrew Sullivan ajs@xxxxxxxxxxxxxxxxx +1 503 667 4564 x104 http://www.commandprompt.com/