Return-Path: X-Original-To: notmuch@notmuchmail.org Delivered-To: notmuch@notmuchmail.org Received: from localhost (localhost [127.0.0.1]) by olra.theworths.org (Postfix) with ESMTP id 3E6DF4196F2 for ; Mon, 12 Apr 2010 16:35:39 -0700 (PDT) X-Virus-Scanned: Debian amavisd-new at olra.theworths.org X-Spam-Flag: NO X-Spam-Score: -4.2 X-Spam-Level: X-Spam-Status: No, score=-4.2 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3] autolearn=ham Received: from olra.theworths.org ([127.0.0.1]) by localhost (olra.theworths.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 5IZErOVLRLjq for ; Mon, 12 Apr 2010 16:35:38 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org [18.85.46.34]) by olra.theworths.org (Postfix) with ESMTP id 7DD8F431FC1 for ; Mon, 12 Apr 2010 16:35:38 -0700 (PDT) Received: from localhost ([::1] helo=x200.gr8dns.org) by bombadil.infradead.org with esmtp (Exim 4.69 #1 (Red Hat Linux)) id 1O1TA9-00039z-SF; Mon, 12 Apr 2010 23:35:30 +0000 Received: by x200.gr8dns.org (Postfix, from userid 500) id 2F08EC005D; Mon, 12 Apr 2010 16:35:28 -0700 (PDT) From: Dirk Hohndel To: Servilio Afre Puentes Subject: Re: please eat my data! In-Reply-To: References: <87633wlrrk.fsf@SSpaeth.de> <87tyrgeopc.fsf@servo.finestructure.net> <87iq7wpubw.fsf@SSpaeth.de> <87ljcsr3tu.fsf@willster.local.flamingspork.com> Date: Mon, 12 Apr 2010 16:35:28 -0700 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html Cc: Notmuch list X-BeenThere: notmuch@notmuchmail.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: "Use and development of the notmuch mail system." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 12 Apr 2010 23:35:39 -0000 On Mon, 12 Apr 2010 19:10:25 -0400, Servilio Afre Puentes wrote: > On 12 April 2010 13:47, Dirk Hohndel wrote: > > On Mon, 12 Apr 2010 10:14:05 -0700, Stewart Smith wrote: > >> On Mon, 12 Apr 2010 17:24:35 +0200, "Sebastian Spaeth" wrote: > >> > What I find intersting is that we have a 2x speedup and a 10x speedup > >> > for different queries. Olly was saying on IRC that both *should* really be > >> > behaving in much the same manner. > >> > >> Remember that on ext3 (and pretty sure ext4) fsync is the same as > >> sync(). So performance depends on how much dirty data you have in your cache. > >> > >> libeatmydata also gets rid of msync(), O_SYNC etc as well. > > > > Which is why so many of us have started to use BTRFS... > > How stable is it now? What kernel version and distro are you using? Several. Fedora 12 with 2.6.34-rc3. Moblin-2.1 (derivative) with 2.6.33. Debian sid with 2.6.33 I've been using it for most everything I do since some point in the 2.6.32 rcs. /D -- Dirk Hohndel Intel Open Source Technology Center