From owner-freebsd-fs Wed Sep 13 10: 1:48 2000 Delivered-To: freebsd-fs@freebsd.org Received: from mail.integratus.com (miami.integratus.com [63.209.2.83]) by hub.freebsd.org (Postfix) with SMTP id 7343F37B422 for ; Wed, 13 Sep 2000 10:01:46 -0700 (PDT) Received: (qmail 19282 invoked from network); 13 Sep 2000 17:01:46 -0000 Received: from kungfu.integratus.com (HELO integratus.com) (172.20.5.168) by tortuga1.integratus.com with SMTP; 13 Sep 2000 17:01:46 -0000 Message-ID: <39BFB2F9.AB6CEE34@integratus.com> Date: Wed, 13 Sep 2000 10:01:45 -0700 From: Jack Rusher Organization: Integratus X-Mailer: Mozilla 4.73 [en] (X11; I; Linux 2.2.12 i386) X-Accept-Language: en MIME-Version: 1.0 To: Erez Zadok Cc: Boris Popov , Terry Lambert , freebsd-fs@FreeBSD.ORG, dillon@FreeBSD.ORG, semenu@FreeBSD.ORG, tegge@FreeBSD.ORG Subject: Re: CFR: nullfs, vm_objects and locks... (patch) References: <200009130355.XAA23270@shekel.mcl.cs.columbia.edu> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-fs@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Erez Zadok wrote: > > changing the VFS, might as well have support for custom page coherency > schemes, fan-in, fan-out, etc. Anyone planning to tackle a major overhaul of the VFS/vnode behavior should probably take the half hour to read this paper: http://www.cs.princeton.edu/~rywang/berkeley/papers/spe98.html ...it is a set of observations concerning the creation of the xFS "serverless" network file system. In particular, there are some interesting points made concerning the difficulties of getting the UNIX kernel file system interface to work with designs for highly cache coherent cluster computing systems. -- Jack Rusher, Senior Engineer | mailto:jar@integratus.com Integratus, Inc. | http://www.integratus.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message