Postgres Pro
Downloads
Home   >   mailing lists

Postgres 8.4 memory related parameters - Mailing list pgsql-performance

From Claire Chang
Subject Postgres 8.4 memory related parameters
Date
Msg-id 1312489633.71838.YahooMailClassic@web31912.mail.mud.yahoo.com
Whole thread Raw
Responses Re: Postgres 8.4 memory related parameters
List pgsql-performance
Tree view
hi,
 
We recently bought a 4 8core 128G memory database server and I am setting it up to replace our old 4 4cores 128G memory database server as a master. The memory related settings that we use on the old machine seem a bit wrong according to the experts on IRC:

max_connections = 600
shared_buffers = 32GB
effective_cache_size = 64GB
work_mem = 5MB
maintenance_work_mem = 1GB 
wal_buffers = 64kB

we are using ubuntu 10
/etc/sysctl.conf
kernel.shmmax=35433480192
kernel.shmall=8650752

Can anyone suggest better values?

thanks,
Claire

pgsql-performance by date:

Previous
From: Jian Shi
Date:
Subject: table size is bigger than expected
Next
From: "Kevin Grittner"
Date:
Subject: Re: Postgres 8.4 memory related parameters