From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9DB53C4BA06 for ; Thu, 27 Feb 2020 07:58:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 776C2222C2 for ; Thu, 27 Feb 2020 07:58:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728430AbgB0H6i (ORCPT ); Thu, 27 Feb 2020 02:58:38 -0500 Received: from titan.hyper.fi ([80.83.3.82]:32989 "EHLO titan.hyper.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726999AbgB0H6i (ORCPT ); Thu, 27 Feb 2020 02:58:38 -0500 X-Greylist: delayed 1107 seconds by postgrey-1.27 at vger.kernel.org; Thu, 27 Feb 2020 02:58:38 EST Received: by titan.hyper.fi (Postfix, from userid 500) id 51DC3E7DDD; Thu, 27 Feb 2020 09:40:08 +0200 (EET) Received: from localhost (localhost [127.0.0.1]) by titan.hyper.fi (Postfix) with ESMTP id 4F595E7DDB for ; Thu, 27 Feb 2020 09:40:08 +0200 (EET) Date: Thu, 27 Feb 2020 09:40:08 +0200 (EET) From: linux-btrfs@oh3mqu.pp.hyper.fi X-X-Sender: oh3mqu@titan.hyper.fi To: linux-btrfs@vger.kernel.org Subject: subvolume layout? In-Reply-To: <20200226170755.GE22837@infradead.org> Message-ID: References: <20200225214838.30017-1-willy@infradead.org> <20200225214838.30017-26-willy@infradead.org> <20200226170755.GE22837@infradead.org> User-Agent: Alpine 2.00 (LFD 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Hi, I am doing backups using btrfs snapshots with this kind of (dir/subvol) layout. backups(btrfs-root) machine1 machine2 work(rw) day1(ro) day2(ro)... work(rw) day1(ro) day2(ro)... There are tens on machines and hundreds of daily snapshots total and I can see slowness. Now I am wondering which one is better. Should those machine level "directories" be directory or subvolume? -- Ari