Received: from maia.hub.org (unknown [200.46.204.183]) by mail.postgresql.org (Postfix) with ESMTP id 6A3236333EA for ; Wed, 31 Mar 2010 10:19:37 -0300 (ADT) Received: from mail.postgresql.org ([200.46.204.86]) by maia.hub.org (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 44853-10 for ; Wed, 31 Mar 2010 13:19:26 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from mailin.kwsoft.de (mailin.kwsoft.de [213.164.67.82]) by mail.postgresql.org (Postfix) with ESMTP id E9E42632504 for ; Wed, 31 Mar 2010 10:19:26 -0300 (ADT) Received: from localhost (localhost [127.0.0.1]) by mailin.kwsoft.de (Postfix) with ESMTP id EC9B51A056 for ; Wed, 31 Mar 2010 15:19:24 +0200 (CEST) Received: from mailer.kwsoft.de (mailer.kwsoft.de [10.5.0.1]) by webmail.kwsoft.de (Horde Framework) with HTTP; Wed, 31 Mar 2010 15:19:24 +0200 Message-ID: <20100331151924.174773g693l639c0@webmail.kwsoft.de> Date: Wed, 31 Mar 2010 15:19:24 +0200 From: lst_hoe02@kwsoft.de To: pgsql-admin@postgresql.org Subject: Re: Any good olap benchmarks? References: <4BB32420.2080707@greenmice.info> <4BB32E2F.8030304@2ndquadrant.com> In-Reply-To: <4BB32E2F.8030304@2ndquadrant.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; DelSp="Yes"; format="flowed" Content-Disposition: inline Content-Transfer-Encoding: 7bit User-Agent: Internet Messaging Program (IMP) H3 (4.3.6) X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=0.001 tagged_above=-10 required=5 tests=BAYES_50=0.001 X-Spam-Level: X-Archive-Number: 201003/286 X-Sequence-Number: 34085 Zitat von Greg Smith : > I've linked to everything I'm aware of at > http://wiki.postgresql.org/wiki/Category:Benchmarking and the TPC-H > page has probably the most relevant information for OLAP. > PostgreSQL doesn't do particularly well on OLAP benchmarks yet due > to how queries are limited by a single processor, making it hard to > get excited about publishing the results. > > Greenplum ran some interesting tests of their own software against > PostgreSQL at http://community.greenplum.com/showthread.php?t=113 > you might find interesting. That includes a fairly easy to use > TPC-H like test kit program, and by showing where they did much > better is suggest the areas that community Postgres struggles > relative to software that handles parallel query across multiple > cores/servers. I maybe wrong but this looks like "partitioning" PostgreSQL to me???