On Tue, Sep 22, 2009 at 2:42 AM, Magnus Hagander <magnus@xxxxxxxxxxxx> wrote: > That's not true at all. > > If you have many relations in your cluster that have at some point been > touched, the starts collector can create a *significant* load on the I/o > system. I've come across several cases where the only choice was to disable > the collector completely, even given all the drawbacks from that. Thanks Magnus, I thought that other response sounded a bit fanciful :-) So is there any way to predict the load this will have? Or just try it and hope for the best? :-) Right now on our 8.3 system it is off and we'd like to turn it on -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of "In Defense of Food" -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance