From mboxrd@z Thu Jan 1 00:00:00 1970 From: Florent Subject: Re: Poor Write I/O Performance on KVM-79 Date: Sun, 04 Jan 2009 19:48:10 +0100 Message-ID: References: <66c93b820901032203yc735b1g48d5bf19deffbfc@mail.gmail.com> <4960B88A.2010608@redhat.com> <33d560f70901041007u5d0231dp55b1ef525f2d3925@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit To: kvm@vger.kernel.org Return-path: Received: from main.gmane.org ([80.91.229.2]:57220 "EHLO ciao.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751448AbZADSzF (ORCPT ); Sun, 4 Jan 2009 13:55:05 -0500 Received: from root by ciao.gmane.org with local (Exim 4.43) id 1LJY7q-00013f-G8 for kvm@vger.kernel.org; Sun, 04 Jan 2009 18:55:02 +0000 Received: from agrenoble-156-1-13-241.w90-36.abo.wanadoo.fr ([90.36.236.241]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 04 Jan 2009 18:55:02 +0000 Received: from flouc by agrenoble-156-1-13-241.w90-36.abo.wanadoo.fr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 04 Jan 2009 18:55:02 +0000 In-Reply-To: <33d560f70901041007u5d0231dp55b1ef525f2d3925@mail.gmail.com> Sender: kvm-owner@vger.kernel.org List-ID: Rodrigo, KVM can use Logical Volume as a field of bytes to store the back-end of the guest HDD. Doing this, the overhead of the partition format is avoided at host side and things should be faster. - Florent