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 53C489DC9BC for ; Tue, 28 Mar 2006 14:57:52 -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 32840-02 for ; Tue, 28 Mar 2006 14:57:49 -0400 (AST) Received: from svr4.postgresql.org (svr4.postgresql.org [66.98.251.159]) by postgresql.org (Postfix) with ESMTP id CB9699DC848 for ; Tue, 28 Mar 2006 14:57:47 -0400 (AST) Received: from white.netsurf.net (white.NetSurf.Net [66.135.102.134]) by svr4.postgresql.org (Postfix) with ESMTP id 497EE5AF03D for ; Tue, 28 Mar 2006 18:57:48 +0000 (GMT) Received: from [10.42.124.48] (internt.43.ADSL.NetSurf.Net [66.135.96.43]) by white.netsurf.net (8.12.3/8.12.3/Debian-7.1) with ESMTP id k2SIveuW018188; Tue, 28 Mar 2006 13:57:40 -0500 Message-ID: <44298721.5050400@alteeve.com> Date: Tue, 28 Mar 2006 13:57:37 -0500 From: Madison Kelly User-Agent: Thunderbird 1.5 (X11/20051201) MIME-Version: 1.0 To: Marcos Cc: pgsql-performance@postgresql.org Subject: Re: Decide between Postgresql and Mysql (help of comunity) References: <1143559902.1241.16.camel@servidor> In-Reply-To: <1143559902.1241.16.camel@servidor> Content-Type: text/plain; charset=ISO-2022-JP Content-Transfer-Encoding: 7bit X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, score=0 required=5 tests=[none] X-Spam-Score: 0 X-Spam-Level: X-Archive-Number: 200603/556 X-Sequence-Number: 17993 Marcos wrote: > Hi, > > I'm a Postgresql's user and I think that it's very very good and > robust. > > In my work we're confuse between where database is the best choose: > Postgresql or Mysql. The Mysql have the reputation that is very fast > working in the web but in our application we are estimating many access > simultaneous, then I think that the Postgresql is the best choice. > > Am I right? > > Our server have 1 GB of RAM, how many users can it support at the same > time with this memory? > > Thanks in advanced > > Marcos The RAM/users question depends largely on what the database is used for and what each user is doing in the database. From what I understand, PostgreSQL is designed with stability and reliability as key tenants. MySQL favors performance and ease of use. An example is that, last I checked, MySQL doesn't have an equivalent to PostgreSQL's 'fsync' which helps insure that data is actually written to the disk. This costs performance but increases reliability and crash recovery. HTH Madison -- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Madison Kelly (Digimer) -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-