"Jim C. Nasby" <jnasby@xxxxxxxxxxxxx> writes: > Every single piece of advice I've seen on shared_buffers comes from the > 7.x era, when our buffer management was extremely simplistic. IMO all of > that knowledge was made obsolete when 8.0 came out, and our handling of > shared_buffers has improved ever further since then. This is definately > an area that could use a lot more testing. Actually I think it was probably 8.1 that made the significant difference there, by getting rid of the single point of contention for shared-buffer management. I concur that 7.x-era rules of thumb may well be obsolete --- we need some credible scaling tests ... regards, tom lane
