From owner-freebsd-fs@FreeBSD.ORG Sun Feb 10 00:44:14 2008 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id AE43B16A4DA; Sun, 10 Feb 2008 00:44:14 +0000 (UTC) (envelope-from jmg@hydrogen.funkthat.com) Received: from hydrogen.funkthat.com (gate.funkthat.com [69.17.45.168]) by mx1.freebsd.org (Postfix) with ESMTP id 69F2913C442; Sun, 10 Feb 2008 00:44:13 +0000 (UTC) (envelope-from jmg@hydrogen.funkthat.com) Received: from hydrogen.funkthat.com (oosbiwcaljco04a8@localhost.funkthat.com [127.0.0.1]) by hydrogen.funkthat.com (8.13.6/8.13.3) with ESMTP id m1A0TDeY067357; Sat, 9 Feb 2008 16:29:13 -0800 (PST) (envelope-from jmg@hydrogen.funkthat.com) Received: (from jmg@localhost) by hydrogen.funkthat.com (8.13.6/8.13.3/Submit) id m1A0TCZs067356; Sat, 9 Feb 2008 16:29:12 -0800 (PST) (envelope-from jmg) Date: Sat, 9 Feb 2008 16:29:12 -0800 From: John-Mark Gurney To: Nikolay Pavlov Message-ID: <20080210002912.GA7399@funkthat.com> Mail-Followup-To: Nikolay Pavlov , Joao Barros , Attilio Rao , Yar Tikhiy , Doug Barton , Jeff Roberson , freebsd-fs@freebsd.org, Scot Hetzel , freebsd-arch@freebsd.org References: <3bbf2fe10802061700p253e68b8s704deb3e5e4ad086@mail.gmail.com> <200802071941.23199.qpadla@gmail.com> <70e8236f0802071018n389afa3bu161eaa5c6563cbc0@mail.gmail.com> <200802072052.56918.qpadla@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200802072052.56918.qpadla@gmail.com> User-Agent: Mutt/1.4.2.1i X-Operating-System: FreeBSD 5.4-RELEASE-p6 i386 X-Files: The truth is out there X-URL: http://resnet.uoregon.edu/~gurney_j/ X-Resume: http://resnet.uoregon.edu/~gurney_j/resume.html X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-3.0 (hydrogen.funkthat.com [127.0.0.1]); Sat, 09 Feb 2008 16:29:13 -0800 (PST) Cc: freebsd-fs@freebsd.org, Doug Barton , Jeff Roberson , Yar Tikhiy , Attilio Rao , Scot Hetzel , freebsd-arch@freebsd.org Subject: Re: [RFC] Remove NTFS kernel support X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: John-Mark Gurney List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 10 Feb 2008 00:44:14 -0000 Nikolay Pavlov wrote this message on Thu, Feb 07, 2008 at 20:52 +0200: > On Thursday 07 February 2008 20:18:42 Joao Barros wrote: > > On Feb 7, 2008 5:41 PM, Nikolay Pavlov wrote: > > > On Thursday 07 February 2008 14:47:41 Eric Anderson wrote: > > > > FUSE is slow, requires a port (unless PUFFS is ported, which I've > > > > probed about before). > > > > > > I think this is not an argument: > > > http://www.ntfs-3g.org/performance.html > > > > Eric has valid points. > > How relevant is a benchmark on Linux to your argument? > > But it's a userland application. This page is demonstration of it's > potential performance that could be achieved, but were is the FreeBSD NTFS > implementation stats? Let me ask you: compered to what FUSE is slow? Kernel NTFS support is about 10x faster than ntfs-3g on FreeBSD (I think this also depends upon the size of the file). This is because ntfs-3g depends upon the block device that linux provides to userland. There are patches that make ntfs-3g have it's own block cache that makes it perform decently on FreeBSD, but until those patches are integrated, using ntfs-3g is a non-starter if you use NTFS for >4GB file support. It's faster to use samba to a Windows box than it is to use ntfs-3g to write large files. (And that's even w/ how much slower samba is that nfs.) I don't have any hard core benchmarks handy. Even on MacOSX ntfs-3g is sooo slow. It's so slow, that I don't even both hooking up NTFS disks to my MacOSX box anymore either. Though I will say that once ntfs-3g has decided that they want to target other platforms than Linux and address these performance issues, I will be one of the first asking for our current NTFS code to be removed and replaced by ntfs-3g, but until that time, we need to keep the current code. -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."