From owner-freebsd-arch Sun Mar 2 11:13: 5 2003 Delivered-To: freebsd-arch@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7DF7137B401 for ; Sun, 2 Mar 2003 11:13:04 -0800 (PST) Received: from heron.mail.pas.earthlink.net (heron.mail.pas.earthlink.net [207.217.120.189]) by mx1.FreeBSD.org (Postfix) with ESMTP id E1F1043F93 for ; Sun, 2 Mar 2003 11:13:03 -0800 (PST) (envelope-from tlambert2@mindspring.com) Received: from pool0246.cvx22-bradley.dialup.earthlink.net ([209.179.198.246] helo=mindspring.com) by heron.mail.pas.earthlink.net with asmtp (SSLv3:RC4-MD5:128) (Exim 3.33 #1) id 18pYtQ-00063l-00; Sun, 02 Mar 2003 11:13:01 -0800 Message-ID: <3E625750.9319E291@mindspring.com> Date: Sun, 02 Mar 2003 11:11:12 -0800 From: Terry Lambert X-Mailer: Mozilla 4.79 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: Steve Kargl Cc: "Alan L. Cox" , arch@FreeBSD.ORG Subject: Re: Removal of ENABLE_VFS_IOOPT References: <3E619B26.DF1E4FC7@imimic.com> <3E624133.8FB21AA6@mindspring.com> <20030302185801.GA36138@troutmask.apl.washington.edu> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-ELNK-Trace: b1a02af9316fbb217a47c185c03b154d40683398e744b8a40e82b3f33a558e7ca695839109118f8193caf27dac41a8fd350badd9bab72f9c350badd9bab72f9c Sender: owner-freebsd-arch@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Steve Kargl wrote: > > Here's an idea... ask John Dyson about it. > > From John's comments in c.u.b.f.m, I doubt he > follows the kernel development in 5.0 close enough > to make any recommendation without studying the > code. I further suspect that John would not want > to spend the time require. It's a design question, not an implementation question. Alan's suggestion is that the design be modified because (in his opinion) the implementation is incomplete. Though Peter Wemm's comment that it is not incomplete, and that it's used by the zero copy TCP people, to the extent that they've maintained the read coherency code, is also salient. BTW: I think you are wrong about John; I guess you missed his post to -chat last week? -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message