From owner-freebsd-hackers Fri Jul 19 05:58:32 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id FAA24477 for hackers-outgoing; Fri, 19 Jul 1996 05:58:32 -0700 (PDT) Received: from rah.star-gate.com (rah.star-gate.com [204.188.121.18]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id FAA24472 for ; Fri, 19 Jul 1996 05:58:31 -0700 (PDT) Received: from rah.star-gate.com (localhost.v-site.net [127.0.0.1]) by rah.star-gate.com (8.7.5/8.7.3) with ESMTP id FAA00407; Fri, 19 Jul 1996 05:58:15 -0700 (PDT) Message-Id: <199607191258.FAA00407@rah.star-gate.com> X-Mailer: exmh version 1.6.5 12/11/95 To: davidg@Root.COM cc: heo@cslsun10.sogang.ac.kr (Heo Sung Gwan), freebsd-hackers@freebsd.org In-reply-to: Your message of "Fri, 19 Jul 1996 05:33:34 PDT." <199607191233.FAA14124@root.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Fri, 19 Jul 1996 05:58:14 -0700 From: Amancio Hasty Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk >From The Desk Of David Greenman : > > 4) How can user process access the file in ufs filesystem through raw disk? > > You can't unless you write a user-mode UFS/FFS that does it's I/O through > the raw device. I couldn't imagine why you'd want to do this, however. > My guess is that his assumption is that accessing the files via a "raw disk mode" will be faster than going thru the normal file access mechanism. I wish I knew what is he up to so we can help him or better yet his justification for taking such approach . Amancio