[GENERAL] Changing SHMMAX
Dear all, Today i try to perform some performance tuning for Postgresql database. I want to change my shared memory permanently. I have 16 GB RAM. Please guide me how to change it permanently and what is the correct value for it. I am going for 8GB . Thanks Regards Adarsh Sharma -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
Re: [GENERAL] Changing SHMMAX
* Adarsh Sharma: Please guide me how to change it permanently and what is the correct value for it. I am going for 8GB . Usually, you can put these lines kernel.shmall = 90 kernel.shmmax = 90 into /etc/sysctl.conf. Run sysctl -p to activate them. However, this is a bit distribution-specific. -- Florian Weimerfwei...@bfk.de BFK edv-consulting GmbH http://www.bfk.de/ Kriegsstraße 100 tel: +49-721-96201-1 D-76133 Karlsruhe fax: +49-721-96201-99 -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
Re: [GENERAL] Changing SHMMAX
Florian Weimer schrieb: Please guide me how to change it permanently and what is the correct value for it. I am going for 8GB . Usually, you can put these lines kernel.shmall = 90 kernel.shmmax = 90 into /etc/sysctl.conf. Run sysctl -p to activate them. However, this is a bit distribution-specific. If you're using FreeBSD you even have to restart the machine. Greetings, Torsten -- http://www.dddbl.de - ein Datenbank-Layer, der die Arbeit mit 8 verschiedenen Datenbanksystemen abstrahiert, Queries von Applikationen trennt und automatisch die Query-Ergebnisse auswerten kann. -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
Re: [GENERAL] Changing SHMMAX
On Wed, Feb 2, 2011 at 10:31 AM, Torsten Zühlsdorff f...@meisterderspiele.de wrote: kernel.shmall = 90 kernel.shmmax = 90 into /etc/sysctl.conf. Run sysctl -p to activate them. However, this is a bit distribution-specific. If you're using FreeBSD you even have to restart the machine. No, you do not. kern.ipc.shmall and shmmax are run-time tunables in FreeBSD. The only postgres related settings you need a reboot to adjust are kern.ipc.semmni and semmns. -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
