From: Claire Chang <yenhsiac@yahoo.com>
To: pgsql-performance@postgresql.org
Subject: Postgres 8.4 memory related parameters
Date: Thu, 4 Aug 2011 13:27:13 -0700 (PDT)
Message-ID: <1312489633.71838.YahooMailClassic@web31912.mail.mud.yahoo.com> (raw)
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 = 600shared_buffers = 32GBeffective_cache_size = 64GBwork_mem = 5MBmaintenance_work_mem = 1GB wal_buffers = 64kB
we are using ubuntu 10/etc/sysctl.confkernel.shmmax=35433480192kernel.shmall=8650752
Can anyone suggest better values?
thanks,Claire
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To: pgsql-performance@postgresql.org
Cc: yenhsiac@yahoo.com
Subject: Re: Postgres 8.4 memory related parameters
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