Received: from maia.hub.org (maia-5.hub.org [200.46.204.29]) by mail.postgresql.org (Postfix) with ESMTP id D3EF6632AA3 for ; Mon, 30 Aug 2010 02:01:23 -0300 (ADT) Received: from mail.postgresql.org ([200.46.204.86]) by maia.hub.org (mx1.hub.org [200.46.204.29]) (amavisd-maia, port 10024) with ESMTP id 31183-08 for ; Mon, 30 Aug 2010 05:01:16 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from moutng.kundenserver.de (moutng.kundenserver.de [212.227.17.10]) by mail.postgresql.org (Postfix) with ESMTP id 50B0062E67F for ; Mon, 30 Aug 2010 02:01:16 -0300 (ADT) Received: from [192.168.1.6] (static-71-179-240-8.bltmmd.fios.verizon.net [71.179.240.8]) by mrelayeu.kundenserver.de (node=mreu0) with ESMTP (Nemesis) id 0Ldqv1-1PFcH62VDH-00iyhc; Mon, 30 Aug 2010 07:01:12 +0200 Message-ID: <4C7B3B16.2030207@2ndquadrant.com> Date: Mon, 30 Aug 2010 01:01:10 -0400 From: Greg Smith User-Agent: Thunderbird 2.0.0.24 (X11/20100317) MIME-Version: 1.0 To: Jose Ildefonso Camargo Tolosa CC: Scott Carey , Philippe Rimbault , "pgsql-performance@postgresql.org" Subject: Re: Performance on new 64bit server compared to my 32bit desktop References: <4C6CE64D.6070104@edd.fr> <4C6D76FE.9010407@2ndquadrant.com> <4C77F4F4.4020900@2ndquadrant.com> <4C7B3624.1010907@2ndquadrant.com> In-Reply-To: <4C7B3624.1010907@2ndquadrant.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Provags-ID: V02:K0:SCKcdtYdQaD2XArnvGpZMdwseGdQPupYUCSNTlride9 ZQgnXfoZzOlj+9jiaLyjlqJyVf8TfcMrHaaJUaXYmQ64xGZWUD Q5ZndYqwwkSP54I7opTJSqcF9xIu5wOUPFeuGoO6Rm7aldnPxt xiqTwtDBmz+h2VN9j9phGp3EbWbM/jMaH5udEkDlBzj/+ZkSam yS/O4M/OUbbcz2T783z5Zc4Kktn2wwo+67/r+LYLQc= X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=-1.9 tagged_above=-10 required=5 tests=BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001 X-Spam-Level: X-Archive-Number: 201008/307 X-Sequence-Number: 40150 Greg Smith wrote: > He's been seeing >75GB/s of aggregate memory bandwidth out of that > monster--using gcc, so even at a disadvantage compared to the Intel > one used for that report. On second read this was confusing. The best STREAM results from using the Intel compiler on Linux. The ones I've been doing and that Scott has been running are using regular gcc instead. So when the new AMD system is clearing 75MB/s in the little test set I'm trying to get automated, that's actually a conservative figure, given that a compiler swap is almost guaranteed to boost results a bit too. -- Greg Smith 2ndQuadrant US Baltimore, MD PostgreSQL Training, Services and Support greg@2ndQuadrant.com www.2ndQuadrant.us