Cesar, > On this server I have only one database with 312GB of data. The database > had run fine during 4 months, but from two months ago, during high work > load periods, the server is collapsed by "%sys" type load. Hmmm. Have you updated Linux any time recently? I'm wondering if this is a PostgreSQL problem at all. It sounds like an OS issue. Can you give us the results of mpstat -P ALL 3 ? The dstat output doesn't tell me much. -- Josh Berkus PostgreSQL Experts Inc. http://pgexperts.com -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
