On Mon, Nov 23, 2015 at 12:20 AM, 657985552@xxxxxx <657985552@xxxxxx> wrote: > [root@pg1 ~]# cat /sys/kernel/mm/transparent_hugepage/enabled > [always] madvise never > [root@pg1 ~]# cat /sys/kernel/mm/transparent_hugepage/defrag > [always] madvise never There's your problem. You need to set those to "never". You can get immediate relief by echoing 'never' to those pseudo-files, but you need to configure your system to set them at OS boot time, too. -- Kevin Grittner EDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general