From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from licorne.daevel.fr ([178.32.94.222]:36172 "EHLO licorne.daevel.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751444Ab2HNNwI (ORCPT ); Tue, 14 Aug 2012 09:52:08 -0400 Message-ID: <502A5804.7080003@daevel.fr> Date: Tue, 14 Aug 2012 15:52:04 +0200 From: Olivier Bonvalet MIME-Version: 1.0 To: Daniel Pocock CC: linux-btrfs@vger.kernel.org Subject: Re: raw partition or LV for btrfs? References: <5027DDFC.60504@pocock.com.au> <502A529B.8060201@pocock.com.au> In-Reply-To: <502A529B.8060201@pocock.com.au> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: linux-btrfs-owner@vger.kernel.org List-ID: On 14/08/2012 15:28, Daniel Pocock wrote: > If I create 10 LVs today, with btrfs on each, From my understanding of Btrfs, it achieve good write performance by making near all writes "sequential". But if you split your disk in 10 sub-parts, and set btrfs on each of them, writes operations of Btrfs will not really be sequential anymore. So, for me, to have good performance btrfs should manage all the disk (maybe excepting the /boot/ directory, just to avoid any problem with grub).