From owner-freebsd-current@FreeBSD.ORG Thu Dec 3 03:16:55 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E6EF2106566B for ; Thu, 3 Dec 2009 03:16:55 +0000 (UTC) (envelope-from rwatson@FreeBSD.org) Received: from cyrus.watson.org (cyrus.watson.org [65.122.17.42]) by mx1.freebsd.org (Postfix) with ESMTP id BF82F8FC08 for ; Thu, 3 Dec 2009 03:16:55 +0000 (UTC) Received: from [192.168.1.71] (c-67-186-133-78.hsd1.ma.comcast.net [67.186.133.78]) by cyrus.watson.org (Postfix) with ESMTPSA id 52D7246B35; Wed, 2 Dec 2009 22:16:55 -0500 (EST) Mime-Version: 1.0 (Apple Message framework v1077) Content-Type: text/plain; charset=us-ascii From: "Robert N. M. Watson" In-Reply-To: Date: Wed, 2 Dec 2009 18:36:15 -0500 Content-Transfer-Encoding: quoted-printable Message-Id: <481CD35B-0CDF-4E84-AC55-8825FE07CC9D@freebsd.org> References: <200911301117.37950.naylor.b.david@gmail.com> To: Antony Mawer X-Mailer: Apple Mail (2.1077) Cc: freebsd-current@freebsd.org, David Naylor Subject: Re: FreeBSD 8.0 Performance (at Phoronix) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 03 Dec 2009 03:16:56 -0000 On 2 Dec 2009, at 04:01, Antony Mawer wrote: > On Wed, Dec 2, 2009 at 12:25 AM, Robert Watson = wrote: > ... >>=20 >> For tests that depend on file system namespace operations, seeing a >> measurement comparing ZFS directly would be interesting; likewise, = perhaps >> using async file system mounts on FreeBSD without soft updates. = Jeff's >> forthcoming journaling changes would also be interesting to consider, = but >> I'm not sure to what extent he'll see performance improvements, or = whether >> it's just about the consistency improvements for his SU+J work. >=20 > Is there any information about what these journaling changes are or > what they involve? I would be interested to keep tabs on any ongoing > work being done on journalling for UFS... I'm not aware of detailed public descriptions yet, but with any luck = we'll hear more in the near future. I'm very much looking forward to = seeing it make it into -current, with the usual understanding that these = things take a while to shake out... Robert=