Received: from makus.postgresql.org ([98.129.198.125]) by malur.postgresql.org with esmtp (Exim 4.72) (envelope-from ) id 1TLgqr-00055k-4k for pgsql-performance@postgresql.org; Tue, 09 Oct 2012 20:56:29 +0000 Received: from smtp.peak6.com ([38.98.137.6]) by makus.postgresql.org with esmtp (Exim 4.72) (envelope-from ) id 1TLgqp-0000Nr-I6 for pgsql-performance@postgresql.org; Tue, 09 Oct 2012 20:56:28 +0000 X-AuditID: 0a64cb1e-b7fd36d00000120f-de-50748f75430b Message-ID: <50748F79.7070402@optionshouse.com> Date: Tue, 9 Oct 2012 15:56:25 -0500 From: Shaun Thomas Reply-To: Organization: Peak6 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:15.0) Gecko/20120912 Thunderbird/15.0.1 MIME-Version: 1.0 To: Craig James CC: Subject: Re: Hyperthreading (was: Two identical systems, radically different performance) References: In-Reply-To: Content-Type: text/plain; charset="ISO-8859-1"; format=flowed content-transfer-encoding: 7bit X-Originating-IP: [10.10.201.64] X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFuplleLIzCtJLcpLzFFi42LhSuEV0y3tLwkw2HlN22L/iq2MFtdnnmN2 YPK4svM4o8eFfdPYA5iiGhhtEvPy8ksSS1IVUlKLk22V/AtKMvPzij3yS4tTFVwyi5NzEjNz U4uUFDJTbJXMlRQKchKTU3NT80pslRILClLzUpTsuBQwgA1QWWaeQmpecn5KZl66rZJnsL+u hYWppa6hkl08MkjoZMm43X6QvWAxc8W+iVPZGhhPMXUxcnJICJhI3Pm9hRXCFpO4cG89G4jN K6AvsWDPZ7AaFgEViXMvL4LVsAnoSkzqXwFWIwQU7zt7A6yGX0BYYt+HJmYQW1QgTOLdr6Os EHMEJU7OfMICYosIqEt0ds0Aq2cWUJOY+3ASWI2wQKrE+oOfWSBmBkgsuPKcHcTmFAiUONNy hRGi3lbiwpzrLBC2vMT2t3OYIepVJVY0T2SDuF9B4v+Vd0wTGIVmIVk9C0n7LCTtCxiZVzGK F5clJmdkmhYU55YUGOoVpCZmm+nlpZZsYgRH7mm5HYzTlyoeYhTgYFTi4TUoKQkQYk0sK67M PcQowcGsJMK73x4oxJuSWFmVWpQfX1Sak1p8iDEZGGYTmaVEk/OBSSWvJN7Q2NDS1NLEzNLc 2NiANGElcV7bPqUAIYF0YOLJTk0tSC2C2cLEwSnVwBj10Fx4euc14WXeEzdUVi0KttA32y60 75Be1ubDFrOnaqhnlvoePX6EtTmp6k6rK3e8yPwz4hzGRq0ru3Zulvl8pEqij3P+Ox1j7pkb UndXRJvZLvewnXS57+Y2zw/bFl/dM3nlR837ShxC1x6+bH6y/fTVK0mL17KyVzey6poyCh4X kt7B2K7EUpyRaKjFXFScCAAa+fqhIAMAAA== X-Pg-Spam-Score: -1.9 (-) X-Archive-Number: 201210/89 X-Sequence-Number: 48048 On 10/09/2012 03:12 PM, Craig James wrote: > ~3200 TPS max with hyperthreading > ~9000 TPS max without hyprethreading That's really odd. We got almost the opposite effect on our X5645's. Also, there's no way your RAID is sustaining 9000TPS. Something here sounds fishy. -- Shaun Thomas OptionsHouse | 141 W. Jackson Blvd. | Suite 500 | Chicago IL, 60604 312-444-8534 sthomas@optionshouse.com ______________________________________________ See http://www.peak6.com/email_disclaimer/ for terms and conditions related to this email