From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from magic.merlins.org ([209.81.13.136]:38125 "EHLO mail1.merlins.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755412AbaDTT7J (ORCPT ); Sun, 20 Apr 2014 15:59:09 -0400 Received: from svh-gw.merlins.org ([173.11.111.145]:50974 helo=legolas.merlins.org) by mail1.merlins.org with esmtpsa (Cipher TLS1.2:DHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.80 #2) id 1WbxtG-0008NF-PY by authid with srv_auth_plain for ; Sun, 20 Apr 2014 12:59:08 -0700 Received: from merlin by legolas.merlins.org with local (Exim 4.80) (envelope-from ) id 1WbxtG-0001m0-1b for linux-btrfs@vger.kernel.org; Sun, 20 Apr 2014 12:59:02 -0700 Date: Sun, 20 Apr 2014 12:59:01 -0700 From: Marc MERLIN To: linux-btrfs@vger.kernel.org Message-ID: <20140420195901.GP7884@merlins.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Subject: Do quota groups cost noticeable performance in 3.14? Sender: linux-btrfs-owner@vger.kernel.org List-ID: I was looking at using qgroups for my backup server, which will be filled with millions of files in subvolumes with snapshots. I read a warning that quota groups had performance issues, at least in the past. Is it still true? If there is a performance issue, is it as simple as just turning off quota support and then things go back to normal? Thanks, Marc -- "A mouse is a device used to point at the xterm you want to type in" - A.S.R. Microsoft is to operating systems .... .... what McDonalds is to gourmet cooking Home page: http://marc.merlins.org/ | PGP 1024R/763BE901