Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750846AbWJMOOP (ORCPT ); Fri, 13 Oct 2006 10:14:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750849AbWJMOOP (ORCPT ); Fri, 13 Oct 2006 10:14:15 -0400 Received: from aa014msr.fastwebnet.it ([85.18.95.74]:53137 "EHLO aa014msr.fastwebnet.it") by vger.kernel.org with ESMTP id S1750845AbWJMOOO (ORCPT ); Fri, 13 Oct 2006 10:14:14 -0400 Date: Fri, 13 Oct 2006 16:14:21 +0200 From: Paolo Ornati To: Brice Figureau Cc: linux-kernel@vger.kernel.org Subject: Re: Sluggish system while copying large files. Message-ID: <20061013161421.7ecba339@localhost> In-Reply-To: <1160747774.7929.53.camel@localhost.localdomain> References: <1160747774.7929.53.camel@localhost.localdomain> X-Mailer: Sylpheed-Claws 2.3.0 (GTK+ 2.8.19; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 863 Lines: 23 On Fri, 13 Oct 2006 15:56:14 +0200 Brice Figureau wrote: > I have a brand new Dell 2850 biXeon x86_64 with a Perc4e/Di (megaraid) > RAID card with two hardware RAID1 volumes (sda and sdb, ext3 on top of > LVM2, io scheduler deadline). > > This machine runs 2.6.18 and is used as a mysql server. > > Whenever I cp large files (for instance during backup) from one volume > to the other, the system becomes really sluggish. I used to have this problem and it seems that 2.6.19-rc1 and later kernels are better (at least for me). -- Paolo Ornati Linux 2.6.19-rc1-g9eb20074 on x86_64 - 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/