On Thu, Nov 3, 2011 at 2:51 PM, Claudio Freire <klaussfreire@xxxxxxxxx> wrote: > What other information should I provide? Forgot all the usual details: Server is postgresql 9.0.3, running in linux, quite loaded (load average ~7), WAL on raid 1 2 spindles, data on raid 10 4 spindles, 16G RAM. Could it be high contention between the worker processes? (because of the high load) -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance