From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp12.smtpout.orange.fr ([80.12.242.134]:16730 "EHLO smtp.smtpout.orange.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750952Ab2JGNTR (ORCPT ); Sun, 7 Oct 2012 09:19:17 -0400 Message-ID: <50718151.8090506@petaramesh.org> Date: Sun, 07 Oct 2012 15:19:13 +0200 From: =?UTF-8?B?U3fDom1pIFBldGFyYW1lc2g=?= MIME-Version: 1.0 To: Alex CC: linux-btrfs@vger.kernel.org Subject: Re: BTRFS, getting darn slower everyday References: <50714AC8.4010100@petaramesh.org> In-Reply-To: Content-Type: text/plain; charset=UTF-8 Sender: linux-btrfs-owner@vger.kernel.org List-ID: Hi again ;-) Le 07/10/2012 14:33, Alex a écrit : > > 1. Convert to a 16k or 32k leafsize. How should I do this ? Can I do this on a live FS, and isn't this going to double my on-disk used space (I have active snapshots...) > 2. defragment (each non-trivial file) every now and again I believed that the "autodefrag" mount option was supposed to avoid the need for manual defrags...? Plus, with respect to snapshots, isn't this going to increase a lot my used disk space ? > 3. Note that btrfs in kernel 3.6 (vs 3.5) does appear to be quite a bit quicker. I'm not sure that "a bit" quicker will be enough, when I see my BTRFS is currently about 8x slower than what ext4 user to... -- Swâmi Petaramesh http://petaramesh.org PGP 9076E32E Ne cherchez pas : Je ne suis pas sur Facebook.