From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: Data-deduplication? Date: Wed, 15 Oct 2008 15:39:16 +0200 Message-ID: <48F5F284.1020309@redhat.com> References: <20081012020629.GA14615@bludgeon.org> <878wssswqa.fsf@basil.nowhere.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Cc: Ray Van Dolson , linux-btrfs@vger.kernel.org To: Andi Kleen Return-path: In-Reply-To: <878wssswqa.fsf@basil.nowhere.org> List-ID: Andi Kleen wrote: > Ray Van Dolson writes: > > >> I recall their being a thread here a number of months back regarding >> data-deduplication support for bttfs. >> >> Did anyone end up picking that up and giving a go at it? Block level >> data dedup would be *awesome* in a Linux filesystem. It does wonders >> for storing virtual machines w/ NetApp and WAFL, and even ZFS doesn't >> have this feature yet (although I've read discussions on them looking >> to add it). >> > > There are some patches to do in QEMU's cow format for KVM. That's > user level only. > And thus, doesn't work for sharing between different images, especially at runtime. I'd really, really [any number of reallies], really like to see btrfs deduplication. -- error compiling committee.c: too many arguments to function