Zitat von Fabricio <fabrixio1@xxxxxxxxxxx>:
Hi...
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
As far as i can see PostgreSQL is not able to support NUMA? With a
little search i get to rellay interesting links according to the
problem and a potential solution supported by Oracle (using huge
pages). Unfortunately PostgreSQL seams not using "huge pages" until
now??
http://oss.linbit.com/hugetlb/
http://kevinclosson.wordpress.com/kevin-closson-index/oracle-on-opteron-k8l-numa-etc/
Any comments on this from PostgreSQL developers?
Regards
Andreas
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