Received: from localhost (unknown [200.46.204.183]) by developer.postgresql.org (Postfix) with ESMTP id A95BC2E0067 for ; Fri, 23 May 2008 07:49:31 -0300 (ADT) Received: from developer.postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 69689-01-5 for ; Fri, 23 May 2008 07:49:23 -0300 (ADT) X-Greylist: delayed 00:06:39.699404 by SQLgrey-1.7.6 Received: from mx1.wp.pl (mx1.wp.pl [212.77.101.5]) by developer.postgresql.org (Postfix) with ESMTP id A5A212E00CA for ; Fri, 23 May 2008 07:48:30 -0300 (ADT) Received: (wp-smtpd smtp.wp.pl 1851 invoked from network); 23 May 2008 12:41:33 +0200 Received: from bramka-zew.dfqs.pl (HELO [192.168.2.69]) (zawadaa@[194.126.222.22]) (envelope-sender ) by smtp.wp.pl (WP-SMTPD) with AES256-SHA encrypted SMTP for ; 23 May 2008 12:41:33 +0200 Message-ID: <48369F59.60902@wp.pl> Date: Fri, 23 May 2008 12:41:29 +0200 From: Andrzej Zawadzki Organization: Dom Finansowy QS Sp. z o.o. - Biuro Informatyki User-Agent: Thunderbird 2.0.0.9 (X11/20071220) MIME-Version: 1.0 To: pgsql-performance@postgresql.org Subject: Quad Xeon or Quad Opteron? Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-WP-AV: skaner antywirusowy poczty Wirtualnej Polski S. A. X-WP-SPAM: NO 0000000 [YXO0] X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200805/314 X-Sequence-Number: 30282 Hello, We're planning new production server for PostgreSQL and I'm wondering which processor (or even platform) will be better: Quad Xeon or Quad Opteron (for example SUN now has a new offer Sun Fire X4440 x64). When I was buying my last database server, then SUN v40z was a really very good choice (Intel's base server was slower). This v40z still works pretty good but I need one more. AFAIK Intel made some changes in chipset but... is this better then AMD HyperTransport and Direct Connect Architecture from database point of view? How about L3 cache - is this important for performance? Do You have any opinions? Suggestions? Thanks, Best regards -- Andrzej Zawadzki