Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dUajJ-0005o3-7v for pgsql-performance@arkaria.postgresql.org; Mon, 10 Jul 2017 15:36:09 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.84_2) (envelope-from ) id 1dUajI-0008TA-Qz for pgsql-performance@arkaria.postgresql.org; Mon, 10 Jul 2017 15:36:08 +0000 Received: from makus.postgresql.org ([2001:4800:1501:1::229]) by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1dUajI-0008St-5j for pgsql-performance@postgresql.org; Mon, 10 Jul 2017 15:36:08 +0000 Received: from mailout01.ims-firmen.de ([213.174.32.96]) by makus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1dUajB-0000NN-1r for pgsql-performance@postgresql.org; Mon, 10 Jul 2017 15:36:06 +0000 Received: from mailin01.ims-firmen.de ([192.168.1.141]) by mailout01.ims-firmen.de with esmtp (envelope-from ) id 1dUaj7-0001d8-gU for pgsql-performance@postgresql.org; Mon, 10 Jul 2017 17:35:57 +0200 Received: from [79.204.138.247] (helo=[192.168.222.103]) by mailin01.ims-firmen.de with esmtpa (envelope-from ) id 1dUaj7-0001Nt-0A for pgsql-performance@postgresql.org; Mon, 10 Jul 2017 17:35:57 +0200 Subject: Re: Very poor read performance, query independent To: pgsql-performance@postgresql.org References: From: Andreas Kretschmer Message-ID: Date: Mon, 10 Jul 2017 17:35:56 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit List-Archive: List-Help: List-ID: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: X-Mailing-List: pgsql-performance Precedence: bulk Sender: pgsql-performance-owner@postgresql.org Am 10.07.2017 um 16:03 schrieb Charles Nadeau: > random_page_cost | 22 why such a high value for random_page_cost? Regards, Andreas -- 2ndQuadrant - The PostgreSQL Support Company. www.2ndQuadrant.com -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance