From owner-freebsd-fs@FreeBSD.ORG Sun Jun 9 16:37:41 2013 Return-Path: Delivered-To: fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id E4A0E1FD; Sun, 9 Jun 2013 16:37:41 +0000 (UTC) (envelope-from amvandemore@gmail.com) Received: from mail-pd0-f177.google.com (mail-pd0-f177.google.com [209.85.192.177]) by mx1.freebsd.org (Postfix) with ESMTP id BDECE111A; Sun, 9 Jun 2013 16:37:41 +0000 (UTC) Received: by mail-pd0-f177.google.com with SMTP id p10so1071300pdj.8 for ; Sun, 09 Jun 2013 09:37:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=HuRdr8G1D01VyeayCEqb/wxl1tWu6SzrR37YxYA0d6I=; b=TgRZuto+mvf9mSNglXbvbD9t8pIr/Z8kUEW32XQ2zrzA/dWIb0g/ZHeHXeD+GW+nkS DjQnGrs519FXmSKETod+ltqPGPEr3tRgyy9OXGHkWsnamegR7So8RNjzqBCWpeSCt0AZ xORRN0g9zERMZahjymll9TtAutwKiJxFTnAiBbYEz7Msx+UPyaFDgMhirsfvjA9JjcUe mjn3HZ7m7pq4Azu8LWdmFrtxe36QKuc4z5/I8li4ryGRNvXs8gM+Mxxxzo8ruKumFiAs +RvrQij1LvY7LxAwNC6nnrd+MQUnaE7X+twcUahukfoJYDNa9seYj2K4JqAc9l8zyhdY +y9A== MIME-Version: 1.0 X-Received: by 10.66.26.231 with SMTP id o7mr10647586pag.207.1370795861194; Sun, 09 Jun 2013 09:37:41 -0700 (PDT) Received: by 10.70.31.195 with HTTP; Sun, 9 Jun 2013 09:37:41 -0700 (PDT) In-Reply-To: References: <16FEF774EE8E4100AD2CAEC65276A49D@multiplay.co.uk> Date: Sun, 9 Jun 2013 11:37:41 -0500 Message-ID: Subject: Re: Changing the default for ZFS atime to off? From: Adam Vande More To: Xin LI Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.14 Cc: Steven Hartland , fs@freebsd.org X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 09 Jun 2013 16:37:42 -0000 On Sat, Jun 8, 2013 at 10:04 PM, Xin LI wrote: > I'd suggest implementing relative atime in VFS layer first: > > > https://github.com/delphij/freebsd/commit/6a199821fbdbf424027499d4a0f8f113f6943e16 Cool, looks like you were already on this. I would offer to test some, but I'm pretty much ZFS only at this point. I imagine there would be much less objections to defaulting to relatime rather than noatime. AFAIK, relatime doesn't break any major tools. -- Adam Vande More