You should monitor PageTables value in /proc/meminfo.if the value larger than 1G,I Suggest enable hugepages . To monitor PageTables: # cat /proc/meminfo |grep -i pagetables -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general