Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.72) (envelope-from ) id 1TgZly-0002Re-8k for pgsql-performance@arkaria.postgresql.org; Thu, 06 Dec 2012 11:37:46 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.72) (envelope-from ) id 1TgZlx-0006UT-2U for pgsql-performance@arkaria.postgresql.org; Thu, 06 Dec 2012 11:37:45 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtp (Exim 4.72) (envelope-from ) id 1TgZlw-0006UK-5u for pgsql-performance@postgresql.org; Thu, 06 Dec 2012 11:37:44 +0000 Received: from mail.kickstone.com ([46.37.63.75]) by magus.postgresql.org with esmtp (Exim 4.72) (envelope-from ) id 1TgZlt-0006e4-8t for pgsql-performance@postgresql.org; Thu, 06 Dec 2012 11:37:43 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=kickstone.com; s=mail; h=Content-Transfer-Encoding:Content-Type:In-Reply-To:References:Subject:CC:To:MIME-Version:From:Date:Message-ID; bh=tzSy9VDdX+MHX3gc5bdDaRWHHBgFTt4MsQJNEFa0D3w=; b=b4LfkYxEUAltaOTk9qH3LMeofTb8JxoE9l28k8dm58jFvKTNunJMZuXv+hn2UjPC1kuxudflGTJ2o7kzSK8kpucUtus+TKoP/WuW6DU+c72D8CfFNGR712le5aag4XLy; Received: from 79-75-78-167.dynamic.dsl.as9105.com ([79.75.78.167]:51984 helo=[192.168.6.22]) by mail.kickstone.com with esmtpa (Exim 4.76) (envelope-from ) id 1TgZlr-0001J5-ML; Thu, 06 Dec 2012 11:37:39 +0000 Message-ID: <50C0837A.6010602@kickstone.com> Date: Thu, 06 Dec 2012 11:37:30 +0000 From: John Lister User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:14.0) Gecko/20120713 Thunderbird/14.0 MIME-Version: 1.0 To: Andrea Suisani CC: pgsql-performance@postgresql.org Subject: Re: xfs perform a lot better than ext4 [WAS: Re: Two identical systems, radically different performance] References: <5076D433.7090605@opinioni.net> <5076DA4E.80504@opinioni.net> <507BC8DE.9050109@opinioni.net> <50BF6980.3090800@opinioni.net> <50C0577A.6070401@kickstone.com> <50C05AF0.1050306@opinioni.net> <50C05F99.8070202@kickstone.com> <50C06652.2080902@opinioni.net> In-Reply-To: <50C06652.2080902@opinioni.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Pg-Spam-Score: -2.0 (--) 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 On 06/12/2012 09:33, Andrea Suisani wrote: > > which kind of ssd disks do you have ? > maybe they are of the same typeShaun Thomas is having problem with here: > http://archives.postgresql.org/pgsql-performance/2012-12/msg00030.php Yeah i saw that post, I'm running the same version of ubuntu with the 3.2 kernel, so when I get a chance to take it down will try the new kernels, although ubuntu are on 3.5 now... Shaun didn't post what hardware he was running on, so it would be interesting to see how it compares. They are intel 320s, which while not the newest should offer some protection against power failure, etc John -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance