On Wed, Nov 26, 2008 at 06:13:41PM -0700, Fabricio wrote: > I have an IBM server with NUMA architecture, two nodes with 4 CPU quad > core and 64 GB of RAM each, and PostgrSQL 8.3.5. Is there any way to > avoid the performance degradation when the load goes up and used the > two nodes? I understand this performance degradation is due to the > higher latency than a cpu access a remote memory that the local > memory. But there are ways to improve this? > > http://archives.postgresql.org/pgsql-general/2005-04/msg01187.php > > Any suggestions? Greetings... Thanks... I suppose this has nothing to do with PostgreSQL but needs some operating system level tuning. Maybe there is a way to bind the postgres processes to one node's CPUs... What operating system are you using? I know that there are ways to bind processes to a CPU on Linux, I'm not sure how to assign multiple processes to multiple CPUs. The Linux scheduler should know about NUMA architectures though, there not that new any more. Tino. -- "What we nourish flourishes." - "Was wir nähren erblüht." www.lichtkreis-chemnitz.de www.craniosacralzentrum.de -- Sent via pgsql-admin mailing list (pgsql-admin@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin
