Josh Berkus <josh@xxxxxxxxxxxx> wrote: > On 07/02/2015 08:41 AM, eudald_v wrote: >> And this is how it looks like when the spike happens: >> [system CPU staying over 90%] > I think you have a driver, kernel, Linux memory management, or IO > stack issue. In my experience this is usually caused by failure to disable transparent huge page support. The larger shared_buffers is configured, the bigger the problem. -- Kevin Grittner EDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
