Received: from maia.hub.org (maia-2.hub.org [200.46.204.251]) by mail.postgresql.org (Postfix) with ESMTP id E5D29B5DBC1 for ; Thu, 4 Aug 2011 18:58:10 -0300 (ADT) Received: from mail.postgresql.org ([200.46.204.86]) by maia.hub.org (mx1.hub.org [200.46.204.251]) (amavisd-maia, port 10024) with ESMTP id 61881-05 for ; Thu, 4 Aug 2011 21:58:04 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from smtp2.peak6.com (smtp2.peak6.com [38.98.137.9]) by mail.postgresql.org (Postfix) with ESMTP id 860A6B5DBD8 for ; Thu, 4 Aug 2011 18:58:04 -0300 (ADT) X-AuditID: 0a02cb1e-b7cbdae000007cad-e4-4e3b15ec6203 Message-ID: <4E3B15EB.1020603@peak6.com> Date: Thu, 4 Aug 2011 16:58:03 -0500 From: Shaun Thomas Reply-To: Organization: Peak6 User-Agent: Mozilla/5.0 (X11; Linux i686; rv:5.0) Gecko/20110624 Thunderbird/5.0 MIME-Version: 1.0 To: Kevin Grittner CC: , Claire Chang Subject: Re: Postgres 8.4 memory related parameters References: <1312489633.71838.YahooMailClassic@web31912.mail.mud.yahoo.com> <4E3ABCFB020000250003FAF4@gw.wicourts.gov> <4E3B08D3.606@peak6.com> <4E3ACA8C020000250003FB05@gw.wicourts.gov> <4E3B13E8.7050002@peak6.com> <4E3ACEB4020000250003FB10@gw.wicourts.gov> In-Reply-To: <4E3ACEB4020000250003FB10@gw.wicourts.gov> Content-Type: text/plain; charset="ISO-8859-1"; format=flowed content-transfer-encoding: 7bit X-Originating-IP: [10.10.221.50] X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrPIsWRmVeSWpSXmKPExsXCxcQrpvtG1NrPYNsiY4tH55ezWFyfeY7Z oqHtGLMDs8eFfdPYPV5N2MziMWvWYaYA5qgGRpvEvLz8ksSSVIWU1OJkW6UAV0dvM4XgksS8 lMSiFAWXzOLknMTM3NQiJYXMFFslIyWFgpzE5NTc1LwSW6XEgoLUvBQlOy4FDGADVJaZp5Ca l5yfkpmXbqvkGeyva2FhaqlrqGQXjwAJbSwZ/16tZiyYxlIxe2crYwPjEuYuRk4OCQETibur NzFC2GISF+6tZwOxeQU0JI5MPgFmswioSGzdcASshk1ATWLh7ptgtpCArMT+VedYQWx+AWGJ fR+awGaKCgRILJj0lhFijqDEyZlPWEBsEQEDiRsrVoDVMwt4SrxauJ4JxBYWsJW4+H8qUA0X 0MwmJonOCwvBGjgFzCVmnvnGCNFgK3FhznUWCFteYvvbOcwQR8hJ3Gl4DnQoB9ADChL3/jpN YBSahWT1LCTds5B0L2BkXsUoXlyWmJyRaVZQnFtSYKhXkJqYbaaXl1qyiREczafldjCuuKB4 iFGAg1GJh1fogpWfEGtiWXFl7iFGCQ5mJRHeSgZrPyHelMTKqtSi/Pii0pzU4kOM2sAwm8gs xZ2cD0w0eSXxxgYGSuK8PrM5/IQE0oGJIDs1tSC1CKaaiYNTqoHR7EL2kR1KVdY3l33hmPt1 QWfxP9VT5VbtxzeYvCp2Pne4Jufyu7lKwn+4eO9ke75dujJnXvfSltolIS/XZwgJdTAL5Mu6 Pyu9URhlYt5vlaI3wy15q+kija33RGdIv2Tnu+ghxzRj+7aHHWoPJ9uu0jmqtd/2i1JMMMPe qC0O9cyKDEKWSXxKLMUZiYZazEXFiQCcIJc78gIAAA== X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=-2.704 tagged_above=-10 required=5 tests=BAYES_00=-1.9, RP_MATCHES_RCVD=-0.804 X-Spam-Level: X-Archive-Number: 201108/82 X-Sequence-Number: 44529 On 08/04/2011 04:54 PM, Kevin Grittner wrote: >> it peaked at 2x physical cores, where it ended up being 60% >> faster than true cores. > > Not sure I understand the terminology here -- "physical cores" is > counting HT or not? No. So with a dual X5675, that's 12 cores. My numbers peaked at 24-concurrency. At that concurrency, HT was 60% faster than non-HT. Sorry if I mixed my terminology. :) -- Shaun Thomas OptionsHouse | 141 W. Jackson Blvd. | Suite 800 | Chicago IL, 60604 312-676-8870 sthomas@peak6.com ______________________________________________ See http://www.peak6.com/email_disclaimer.php for terms and conditions related to this email