i was just researching that yesterday: performance. see for example http://www.last.fm/user/Russ/journal/2008/02/21/zd_postgres_connection_pools:_pgpool_vs._pg

i was just researching that yesterday: performance. see for example http://www.last.fm/user/Russ/journal/2008/02/21/zd_postgres_connection_pools:_pgpool_vs._pgbouncer http://www.last.fm/user/Russ/journal/2008/02/21/zd_postgres_... in short: pgpool is an old-fashioned unix architecture (process based), pgbouncer is fancy event based. so it usually is a bit more performant. reliable are both so that should not make any difference.