Hi, Zydoon, Zydoon wrote: > Now I'm trying to make my tests, and I'm not that sure I will make the > switch to the PSeries, since my dual xeon with 4 G RAM can handle 3500 > concurrent postmasters consuming 3.7 G of the RAM. I cannot reach this > number on the PSeries with 2 G. This sounds like you want to have one postgresql backend per apache frontend. Did you try running pgpool on the Apache machine, and have only a few (hundred) connections to the backend? Maybe http://en.wikipedia.org/wiki/Memcached could be helpful, too. Markus -- Markus Schaber | Logical Tracking&Tracing International AG Dipl. Inf. | Software Development GIS Fight against software patents in EU! www.ffii.org www.nosoftwarepatents.org