From owner-freebsd-current@FreeBSD.ORG Thu Jun 25 12:59:49 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 3726F1065672 for ; Thu, 25 Jun 2009 12:59:49 +0000 (UTC) (envelope-from mav@FreeBSD.org) Received: from cmail.optima.ua (cmail.optima.ua [195.248.191.121]) by mx1.freebsd.org (Postfix) with ESMTP id B56708FC1B for ; Thu, 25 Jun 2009 12:59:48 +0000 (UTC) (envelope-from mav@FreeBSD.org) Received: from [212.86.226.226] (account mav@alkar.net HELO mavbook.mavhome.dp.ua) by cmail.optima.ua (CommuniGate Pro SMTP 5.2.9) with ESMTPSA id 246809817 for freebsd-current@freebsd.org; Thu, 25 Jun 2009 15:59:45 +0300 Message-ID: <4A4374BB.5060500@FreeBSD.org> Date: Thu, 25 Jun 2009 15:59:39 +0300 From: Alexander Motin User-Agent: Thunderbird 2.0.0.21 (X11/20090405) MIME-Version: 1.0 To: FreeBSD-Current Content-Type: text/plain; charset=KOI8-R; format=flowed Content-Transfer-Encoding: 7bit Subject: minidump and write clustering? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 25 Jun 2009 12:59:49 -0000 Hi. Just wonder, is there plans to implement write clustering for minidump? My SSD is able to write up to 180MB/s with a big block size, but writes only 4MB/s with 4K block. Dumping 1GB of used memory by one page with minidump takes me about 4 minutes. Really annoying! Same time, full dump of all 2GB finishes twice faster! -- Alexander Motin