From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=46059 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OXURZ-0005Jl-H4 for qemu-devel@nongnu.org; Sat, 10 Jul 2010 03:25:50 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OXURY-00031z-5d for qemu-devel@nongnu.org; Sat, 10 Jul 2010 03:25:49 -0400 Received: from adelie.canonical.com ([91.189.90.139]:33590) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OXURY-00031n-1n for qemu-devel@nongnu.org; Sat, 10 Jul 2010 03:25:48 -0400 Received: from loganberry.canonical.com ([91.189.90.37]) by adelie.canonical.com with esmtp (Exim 4.69 #1 (Debian)) id 1OXURW-0000af-5j for ; Sat, 10 Jul 2010 08:25:46 +0100 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id CE7A12E8056 for ; Sat, 10 Jul 2010 08:25:43 +0100 (BST) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Sat, 10 Jul 2010 07:19:00 -0000 From: =?utf-8?b?0JrQvtGA0LXQvdCx0LXRgNCzINCc0LDRgNC6?= <603878@bugs.launchpad.net> Sender: bounces@canonical.com References: <20100710070634.22855.99257.malonedeb@soybean.canonical.com> Message-Id: <20100710071900.22811.36001.malone@soybean.canonical.com> Errors-To: bounces@canonical.com Subject: [Qemu-devel] [Bug 603878] Re: [Feature request] qemu-img option about recompressing Reply-To: Bug 603878 <603878@bugs.launchpad.net> List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org (text was translated by translate.google.com) overdriven=3Dre-compressing recorded=3Dwritten -- = [Feature request] qemu-img option about recompressing https://bugs.launchpad.net/bugs/603878 You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. Status in QEMU: New Bug description: Suppose I have a fresh compressed qcow2 image. After some time the data wer= e recorded without compression. I decide to make "QEMU-IMG convert" for tha= t image to reduce its size. I want a new option, which selects between the two algorithms overdriven im= ages: 1. extract all / compress again when converting images (in the current impl= ementation) 2. compress only uncompressed blocks and just copy the compressed blocks wi= thout re-compression. This option is only needed when converting compressed image to compressed a= nd the compression algorithm is the same.