"Jeffrey W. Baker" <[EMAIL PROTECTED]> writes: > On Fri, 2005-07-15 at 00:00 -0700, Karim Nassar wrote: >> I am working on a system that uses postgresql 7.4.2 (can't change that >> until 8.1 goes stable). Just figured out that there are about 285,000 >> connections created over about 11 hours every day. That averages out to >> about 7.2 connections per second. >> >> Is that a lot? I've never seen that many.
> I see about 8 million connections per full day. Connecting to postgres > is cheap. It's not *that* cheap. I think you'd get materially better performance if you managed to pool your connections a bit. By the time a backend has started, initialized itself, joined a database, and populated its internal caches with enough catalog entries to get useful work done, you've got a fair number of cycles invested in it. Dropping the backend after only one or two queries is just not going to be efficient. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match