Hello guys! I finally got rid of it. It looks that at the end it was all due to transparent_hugepages values. I disabled them and cpu spikes disappeared. I am sorry cause it's something I usually disable on postgresql servers, but I forgot to do so on this one and never thought about it. Thanks a lot for all your helpful messages! Eudald -- View this message in context: http://postgresql.nabble.com/Sudden-connection-and-load-average-spikes-with-postgresql-9-3-tp5855895p5856914.html Sent from the PostgreSQL - performance mailing list archive at Nabble.com. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
