X-Original-To: pgsql-performance-postgresql.org@postgresql.org Received: from localhost (mx1.hub.org [200.46.208.251]) by postgresql.org (Postfix) with ESMTP id 4D4739FB30A for ; Mon, 31 Jul 2006 17:28:00 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.208.251]) (amavisd-new, port 10024) with ESMTP id 27283-04 for ; Mon, 31 Jul 2006 17:27:48 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey- Received: from exchange.g2switchworks.com (mail.g2switchworks.com [63.87.162.25]) by postgresql.org (Postfix) with ESMTP id C56C09FB36C for ; Mon, 31 Jul 2006 17:27:47 -0300 (ADT) Received: from 10.10.1.37 ([10.10.1.37]) by exchange.g2switchworks.com ([10.10.1.2]) with Microsoft Exchange Server HTTP-DAV ; Mon, 31 Jul 2006 20:27:45 +0000 Received: from state.g2switchworks.com by mail.g2switchworks.com; 31 Jul 2006 15:27:45 -0500 Subject: Re: Performances with new Intel Core* processors From: Scott Marlowe To: Arjen van der Meijden Cc: Merlin Moncure , Jonathan Ballet , pgsql-performance@postgresql.org In-Reply-To: <44CE3023.3020402@tweakers.net> References: <44CDFD44.8080307@multani.info> <44CE3023.3020402@tweakers.net> Content-Type: text/plain Content-Transfer-Encoding: 7bit Message-Id: <1154377665.6095.16.camel@state.g2switchworks.com> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 (1.4.6-2) Date: Mon, 31 Jul 2006 15:27:45 -0500 X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=0.088 tagged_above=0 required=5 tests=AWL, SPF_PASS, UNPARSEABLE_RELAY X-Spam-Level: X-Archive-Number: 200607/324 X-Sequence-Number: 20184 On Mon, 2006-07-31 at 11:30, Arjen van der Meijden wrote: > On 31-7-2006 17:52, Merlin Moncure wrote: > For a database system, however, processors hardly ever are the main > bottleneck, are they? So you should probably go for a set of "fast > processors" from your favorite supplier and focus mainly on lots of > memory and fast disks. Whether that employs Opterons or Xeon Woodcrest > (no other Xeons are up to that competition, imho) doesn't really matter. Just making a quick comment here. While the CPU core itself nowadays certainly is not the most common bottleneck for a fast db server, the ability of the CPU/Memory combo to act as a datapump IS often a limit. In that case, you want to go with whichever setup gives you the fastest access to memory.