"John D. Burger" <john@xxxxxxxxx> writes: > I'm now fiddling with some of the performance parameters, and I'm > wondering about max_connections. The default appears to be 100 - this > is at least an order of magnitude higher than I need. Would much be > saved by dropping this down to 10 or less? Nothing at all, really, AFAIK; just a little bit of shared memory. On certain platforms (OS X at least) there is a penalty to oversized max_connections because each per-backend-slot semaphore is an open file that has to be passed down when a new backend process is forked. But this is not true on Solaris. I doubt you'd see any difference. 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