Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1VHIBf-0005Ot-Bb for pgsql-performance@arkaria.postgresql.org; Wed, 04 Sep 2013 18:52:19 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.80) (envelope-from ) id 1VHIBe-000778-Q2 for pgsql-performance@arkaria.postgresql.org; Wed, 04 Sep 2013 18:52:18 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1VHIBd-000741-Fz for pgsql-performance@postgresql.org; Wed, 04 Sep 2013 18:52:17 +0000 Received: from mail.audifarma.com.co ([190.14.237.212] helo=audifarm.audifarma.com.co) by magus.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1VHIBX-00005a-NA for pgsql-performance@postgresql.org; Wed, 04 Sep 2013 18:52:14 +0000 Received: from [10.1.1.81] (unknown [10.1.1.81]) by audifarm.audifarma.com.co (Postfix) with ESMTP id 463F5177A62 for ; Wed, 4 Sep 2013 13:52:09 -0500 (COT) Message-ID: <52278150.9080501@audifarma.com.co> Date: Wed, 04 Sep 2013 13:52:00 -0500 From: Jeison Bedoya Delgado Organization: Audifarma S.A. User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:17.0) Gecko/20130801 Thunderbird/17.0.8 MIME-Version: 1.0 To: pgsql-performance@postgresql.org Subject: Re: higth performance write to disk References: <52275046.3040508@audifarma.com.co> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Pg-Spam-Score: -4.3 (----) 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 Hi merlin, Thanks for your interest, I'm using version 9.2.2, I have a machine with 128GB RAM, 32 cores, and my BD weighs 400GB. When I say slow I meant that while consultations take or failing a copy with pgdump, this taking the same time before had 10K disks in raid 10 and now that I have SSDs in Raid 10. That behavior is normal, or you can improve writing and reading. thank you very much El 04/09/2013 10:27 a.m., Merlin Moncure escribió: > On Wed, Sep 4, 2013 at 10:22 AM, Jeison Bedoya Delgado > wrote: >> Hello, in order to improve the performance of my database included in the >> solution SAN SSD disk on RAID 10, but I see that the performance of the >> database is the same. whichpostgresql.conf parameters that I do recommend to >> change for use writing more. > Going to need some more detailed information. In particular, > transaction rates, hardware specifics, database version, definition of > 'slow', etc etc etc. > > merlin > > -- Atentamente, JEISON BEDOYA DELGADO ADM.Servidores y comunicaciones AUDIFARMA S.A. -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance