2014-02-12 18:59, Бородин Владимир <root@xxxxxxxxxxx>: > I have read several topics [1, 2, 3, 4] with similar problems but haven't > find a good solution. Below is some more diagnostics. I reported the second one. The diagnostics was very similar to yours. I think a lot people experienced this problem with big servers. It was only because of large shared_buffers. The problem disappeared after we reduced it to 2 GB. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance