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 A98734196F2 for ; Mon, 12 Apr 2010 16:10:27 -0700 (PDT) X-Virus-Scanned: Debian amavisd-new at olra.theworths.org X-Spam-Flag: NO X-Spam-Score: -1.999 X-Spam-Level: X-Spam-Status: No, score=-1.999 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001] 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 ZD4qESlLfxaO for ; Mon, 12 Apr 2010 16:10:27 -0700 (PDT) Received: from mail-wy0-f181.google.com (mail-wy0-f181.google.com [74.125.82.181]) by olra.theworths.org (Postfix) with ESMTP id C05B5431FC1 for ; Mon, 12 Apr 2010 16:10:26 -0700 (PDT) Received: by wyj26 with SMTP id 26so1597840wyj.26 for ; Mon, 12 Apr 2010 16:10:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:received:message-id:subject:from:to:cc:content-type; bh=kMqJmGWDm0AZuklvzF1RkO8+kG8n7A/ZDOFs30X2EHg=; b=XX+FzhuPeKy93cYhy9RvShhzyuh/e40qcHPzP/7hBP6zFYwza22F5KMdvZfh0VDtSm enxxyTeY/mRYi44OXlMAZs9rmgn50pMlcohLbKGneT/GquVckYEu1JmuOSMTJ7LaJBJu au6Hkgx5TJIwYpLVjLIt/KH60UGe2YyKCJb4s= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=jD3Eq8mjqlbO8B91BebtlbE4nf91SUPiaPb1TpB31FlaCp/GYRA9ydLYUmpzJd5okA VkC4Gd4Cib4BDbdfA3zvrOsk/SyZOmoEG6/5tQpXbUnJVpAf95WAqy2PNtOIsYXPD09a CECHS+/axy+N0GXAQXs4Q/lXdk59iyTa01k3M= MIME-Version: 1.0 Received: by 10.216.89.140 with HTTP; Mon, 12 Apr 2010 16:10:25 -0700 (PDT) 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 19:10:25 -0400 Received: by 10.216.88.15 with SMTP id z15mr2113395wee.92.1271113825850; Mon, 12 Apr 2010 16:10:25 -0700 (PDT) Message-ID: Subject: Re: please eat my data! From: Servilio Afre Puentes To: Dirk Hohndel Content-Type: text/plain; charset=ISO-8859-1 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 23:10:27 -0000 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? Servilio