X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (av.hub.org [200.46.204.144]) by postgresql.org (Postfix) with ESMTP id 541319DCA1D for ; Mon, 6 Mar 2006 11:23:24 -0400 (AST) Received: from postgresql.org ([200.46.204.71]) by localhost (av.hub.org [200.46.204.144]) (amavisd-new, port 10024) with ESMTP id 35878-09 for ; Mon, 6 Mar 2006 11:23:28 -0400 (AST) X-Greylist: delayed 00:07:18.309957 by SQLgrey- Received: from sccrmhc13.comcast.net (sccrmhc13.comcast.net [63.240.77.83]) by postgresql.org (Postfix) with ESMTP id 800D69DCA06 for ; Mon, 6 Mar 2006 11:23:20 -0400 (AST) Received: from [192.168.0.51] (c-24-8-249-24.hsd1.co.comcast.net[24.8.249.24]) by comcast.net (sccrmhc13) with ESMTP id <20060306151605013001ulfue>; Mon, 6 Mar 2006 15:16:06 +0000 Message-ID: <440C534C.3050300@drule.org> Date: Mon, 06 Mar 2006 08:20:44 -0700 From: Kevin User-Agent: Thunderbird 1.5 (Windows/20051201) MIME-Version: 1.0 To: pgsql-performance@postgresql.org Subject: Re: Postgres on VPS - how much is enough? References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, score=0.12 required=5 tests=[AWL=0.120] X-Spam-Score: 0.12 X-Spam-Level: X-Archive-Number: 200603/35 X-Sequence-Number: 17472 Nagita Karunaratne wrote: > How big a VPS would I need to run a Postgres DB. > > I need a Postgres database with about 15 tables that will run on a > single virtual private server. > > The 15 tables will be spread over three tablespaces (5 tables per > tablespace) and be accessed by three different applications running on > different machines. > > One application will add about 500 orders per day > Another will access this data to create and send about 500 emails per day > A third will access this data to create an after-sales survey for at > most 500 times per day. > > What type of VPS would I need to run a database with this type pf load? > Is 128 MB ram enough? > What percentage of a 2.8 GHz CPU would be required? > If the database is going to be larger then the allocated memory, disk I/O is very important. Not all VPS technologies are equal in this regard. (see link below) Like someone else suggested, the best way to know what VPS specs you need is to do your own tests/benchamarks. http://www.cl.cam.ac.uk/Research/SRG/netos/xen/performance.html -Kevin