From owner-freebsd-hackers Mon Sep 24 7:57:34 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from acl.lanl.gov (acl.lanl.gov [128.165.147.1]) by hub.freebsd.org (Postfix) with SMTP id D520137B407 for ; Mon, 24 Sep 2001 07:57:31 -0700 (PDT) Received: (qmail 1451974 invoked from network); 24 Sep 2001 08:57:31 -0600 Received: from snaresland.acl.lanl.gov (128.165.147.113) by acl.lanl.gov with SMTP; 24 Sep 2001 08:57:31 -0600 Received: (qmail 2441 invoked by uid 3499); 24 Sep 2001 08:57:30 -0600 Received: from localhost (sendmail-bs@127.0.0.1) by localhost with SMTP; 24 Sep 2001 08:57:30 -0600 Date: Mon, 24 Sep 2001 08:57:30 -0600 (MDT) From: Ronald G Minnich X-X-Sender: To: David Malone Cc: Attila Nagy , Subject: Re: Disk based file system cache In-Reply-To: <20010924152556.A90833@walton.maths.tcd.ie> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Mon, 24 Sep 2001, David Malone wrote: > On Mon, Sep 24, 2001 at 01:07:00PM +0200, Attila Nagy wrote: > > I'm just curious: is it possible to set up an NFS server and a client > > where the client has very big (28 GB maximum for FreeBSD?) swap area on > > multiple disks and caches the NFS exported data on it? > > This could save a lot of bandwidth on the NFS server and also redues load > > on that. > > This would really be more than NFS is supposed to do. There other > filesystems which can do this sort of thing - I think Coda might > be one of them. see the autocacher paper at http://www.acl.lanl.gov/~rminnich let me know if this is what you mean. I recently built a new one "from scratch" and it works. BUT, at least with Linux, my measurements show that the dcache really eliminates most of the benefits. ron To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message