Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1UuH4O-0000Eu-UZ for pgsql-performance@arkaria.postgresql.org; Wed, 03 Jul 2013 07:01:41 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.80) (envelope-from ) id 1UuH4N-0002zm-HJ for pgsql-performance@arkaria.postgresql.org; Wed, 03 Jul 2013 07:01:39 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1UuH4M-0002ze-Ex for pgsql-performance@postgresql.org; Wed, 03 Jul 2013 07:01:38 +0000 Received: from host36.ns3.it ([80.79.54.36] helo=mail.opinioni.net) by magus.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1UuH4F-0003jI-TP for pgsql-performance@postgresql.org; Wed, 03 Jul 2013 07:01:38 +0000 Received: from localhost (localhost [127.0.0.1]) by mail.opinioni.net (Postfix) with ESMTP id BD60560321F for ; Wed, 3 Jul 2013 09:02:46 +0200 (CEST) Received: from mail.opinioni.net ([127.0.0.1]) by localhost (opinioni.net [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 7i96Qe5bJBFL for ; Wed, 3 Jul 2013 09:02:46 +0200 (CEST) Received: from [192.168.1.50] (78-134-6-72.v4.ngi.it [78.134.6.72]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.opinioni.net (Postfix) with ESMTPS id 97C1C60321E for ; Wed, 3 Jul 2013 09:02:46 +0200 (CEST) Message-ID: <51D3CC49.3000705@opinioni.net> Date: Wed, 03 Jul 2013 09:01:29 +0200 From: Andrea Suisani User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130623 Thunderbird/17.0.7 MIME-Version: 1.0 To: "pgsql-performance@postgresql.org" Subject: [OT] A flash filesystem tuning guide Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Pg-Spam-Score: -1.9 (-) 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 all just wanna share a link I've stumbled across today. https://lwn.net/Articles/557220/ quoting the relevant part of the announcement: "This is the culmination of several months of effort, to determine the results of using different tuning options in the Linux kernel, with different filesystems running on flash-based block devices." not specifically tailored to db use, but after a quick glance I can say it seems to contain a lot of useful info. Andrea -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance