Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 27 Dec 2002 07:56:47 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 27 Dec 2002 07:56:47 -0500 Received: from extern.genomatix.de ([213.221.100.139]:18641 "EHLO mail.genomatix.de") by vger.kernel.org with ESMTP id ; Fri, 27 Dec 2002 07:56:46 -0500 Message-ID: <3E0C4FF9.1010100@mailsammler.de> Date: Fri, 27 Dec 2002 14:04:57 +0100 From: Torben Frey User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.2.1) Gecko/20021130 X-Accept-Language: de-de, de, en, en-us MIME-Version: 1.0 To: Nuno Silva CC: linux kernel mailing list References: <3E01D7D7.2070201@mailsammler.de> <3E0276B9.40001@vgertech.com> In-Reply-To: <3E0276B9.40001@vgertech.com> Subject: Re: Horrible drive performance under concurrent i/o jobs (dlh problem?) Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 705 Lines: 19 Hi Nuno, > AFAIK, this is because you have some GB of memory (RAM) that are beeing > used as disk-cache. It took 22 seconds for the cached writes-to-disk > being flushed to the device. Yes, I guess you are right...must be the flushing of my buffers, altogether it writes out exactly the amount of data I would expect (the "22seconds block" included). Regards, Torben PS: Sorry for my long delay, but I was at home over Xmas and could not reply earlier. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/