Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1Yvqpw-0000FC-8T for pgsql-performance@arkaria.postgresql.org; Fri, 22 May 2015 17:34:20 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.80) (envelope-from ) id 1Yvqpv-0003B2-Ip for pgsql-performance@arkaria.postgresql.org; Fri, 22 May 2015 17:34:19 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.2:RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1Yvqpu-0003AU-Ed for pgsql-performance@postgresql.org; Fri, 22 May 2015 17:34:18 +0000 Received: from 01.zmailcloud.com ([192.198.85.104] helo=mx-out-1.zmailcloud.com) by magus.postgresql.org with esmtp (Exim 4.84) (envelope-from ) id 1Yvqpq-00044w-5r for pgsql-performance@postgresql.org; Fri, 22 May 2015 17:34:17 +0000 Received: from smtp.01.com (smtp.01.com [10.10.0.43]) by mx-out-1.zmailcloud.com (Postfix) with ESMTP id D736A563DDC; Fri, 22 May 2015 12:34:10 -0500 (CDT) Received: from localhost (localhost [127.0.0.1]) by smtp-out-1.01.com (Postfix) with ESMTP id C674FA0420; Fri, 22 May 2015 12:34:10 -0500 (CDT) X-Virus-Scanned: amavisd-new at smtp-out-1.01.com Received: from smtp.01.com ([127.0.0.1]) by localhost (smtp-out-1.01.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ju2zEUD_Jubb; Fri, 22 May 2015 12:34:10 -0500 (CDT) Received: from smtp.01.com (localhost [127.0.0.1]) by smtp-out-1.01.com (Postfix) with ESMTP id 94336A0419; Fri, 22 May 2015 12:34:10 -0500 (CDT) Received: from localhost (localhost [127.0.0.1]) by smtp-out-1.01.com (Postfix) with ESMTP id 715F2A0425; Fri, 22 May 2015 12:34:10 -0500 (CDT) X-Virus-Scanned: amavisd-new at smtp-out-1.01.com Received: from smtp.01.com ([127.0.0.1]) by localhost (smtp-out-1.01.com [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id aAlQ_7NnJiec; Fri, 22 May 2015 12:34:09 -0500 (CDT) Received: from [172.47.23.103] (50-0-190-244.dsl.dynamic.fusionbroadband.com [50.0.190.244]) by smtp-out-1.01.com (Postfix) with ESMTPSA id 6BA8AA0420; Fri, 22 May 2015 12:34:09 -0500 (CDT) Message-ID: <555F688B.9030204@agliodbs.com> Date: Fri, 22 May 2015 10:34:03 -0700 From: Josh Berkus Organization: PostgreSQL Experts Inc. User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0 MIME-Version: 1.0 To: Andres Freund CC: Jan Gunnar Dyrset , "pgsql-performance@postgresql.org" Subject: Re: PostgreSQL disk fragmentation causes performance problems on Windows References: <555E29F0.5030907@agliodbs.com> <20150521203913.GB2028@alap3.anarazel.de> In-Reply-To: Content-Type: text/plain; charset=utf-8 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 On 05/21/2015 01:39 PM, Andres Freund wrote: > On 2015-05-21 11:54:40 -0700, Josh Berkus wrote: >> This has been talked about as a feature, but would require major work on >> PostgreSQL to make it possible. You'd be looking at several months of >> effort by a really good hacker, and then a whole bunch of performance >> testing. If you have the budget for this, then please let's talk about >> it because right now nobody is working on it. > > I think this is overestimating the required effort quite a bit. While > not trivial, it's also not that complex to make this work. Well, then, maybe someone should hack and test it ... -- Josh Berkus PostgreSQL Experts Inc. http://pgexperts.com -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance