From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp06.smtpout.orange.fr ([80.12.242.128]:19436 "EHLO smtp.smtpout.orange.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750773Ab2JHGIh (ORCPT ); Mon, 8 Oct 2012 02:08:37 -0400 Message-ID: <50726DE1.20101@petaramesh.org> Date: Mon, 08 Oct 2012 08:08:33 +0200 From: =?UTF-8?B?U3fDom1pIFBldGFyYW1lc2g=?= MIME-Version: 1.0 To: Goffredo Baroncelli CC: linux-btrfs@vger.kernel.org Subject: Re: BTRFS, getting darn slower everyday References: <50714AC8.4010100@petaramesh.org> <50718151.8090506@petaramesh.org> (sfid-20121007_163445_311645_DBA4D8EF) <201210071644.19815.Martin@lichtvoll.de> <5072066B.4020604@gmail.com> In-Reply-To: <5072066B.4020604@gmail.com> Content-Type: text/plain; charset=UTF-8 Sender: linux-btrfs-owner@vger.kernel.org List-ID: Le 08/10/2012 00:47, Goffredo Baroncelli a écrit : > Please could you clarify if you are using the "autodefrag" options > when you have the performance problem ? I use autodefrag on all volumes systematically, except on volumes that I use for really big files that would always be defragmenting (i.e. virtual machines, but I seldom use virtual machines, and my performance problem is general, I don't take VMs into consideration in this respect...) > Are you in position to to reduce the number of snapshot from hundreds > to few ? I might do this as an experiment, but it would defeat one of the prominent purposes for which I use BTRFS, and the number of snapshots would grow immediately again, as I use the excellent OpenSuSE "snapper" tool, that makes a snapshot every single hour... Kind regards. -- Swâmi Petaramesh http://petaramesh.org PGP 9076E32E Ne cherchez pas : Je ne suis pas sur Facebook.