Received: from localhost (maia-3.hub.org [200.46.204.184]) by postgresql.org (Postfix) with ESMTP id B6FE59FC03C for ; Fri, 20 Jul 2007 20:24:54 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.184]) (amavisd-maia, port 10024) with ESMTP id 63105-07 for ; Fri, 20 Jul 2007 20:24:45 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.5 Received: from davinci.ethosmedia.com (server227.ethosmedia.com [209.128.84.227]) by postgresql.org (Postfix) with ESMTP id 56F819FB319 for ; Fri, 20 Jul 2007 20:24:51 -0300 (ADT) X-EthosMedia-Virus-Scanned: no infections found Received: from [64.81.245.111] (account josh@agliodbs.com HELO [192.168.1.27]) by davinci.ethosmedia.com (CommuniGate Pro SMTP 4.1.8) with ESMTP-TLS id 12708356; Fri, 20 Jul 2007 16:28:59 -0700 From: Josh Berkus Reply-To: josh@agliodbs.com Organization: Aglio Database Solutions To: pgsql-performance@postgresql.org Subject: Re: Postgres configuration for 64 CPUs, 128 GB RAM... Date: Fri, 20 Jul 2007 16:26:07 -0700 User-Agent: KMail/1.8 Cc: "Marc Mamin" References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200707201626.08281.josh@agliodbs.com> X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200707/278 X-Sequence-Number: 25962 Marc, > Server Specifications: > ---------------------- > > Sun SPARC Enterprise M8000 Server: > > http://www.sun.com/servers/highend/m8000/specs.xml > > File system: > > http://en.wikipedia.org/wiki/ZFS There are some specific tuning parameters you need for ZFS or performance is going to suck. http://www.solarisinternals.com/wiki/index.php/ZFS_Best_Practices_Guide (scroll down to "PostgreSQL") http://www.sun.com/servers/coolthreads/tnb/applications_postgresql.jsp http://bugs.opensolaris.org/view_bug.do?bug_id=6437054 You also don't say anything about what kind of workload you're running. -- --Josh Josh Berkus PostgreSQL @ Sun San Francisco