From owner-freebsd-alpha Wed Dec 6 17:26:25 2000 From owner-freebsd-alpha@FreeBSD.ORG Wed Dec 6 17:26:21 2000 Return-Path: Delivered-To: freebsd-alpha@freebsd.org Received: from duke.cs.duke.edu (duke.cs.duke.edu [152.3.140.1]) by hub.freebsd.org (Postfix) with ESMTP id 9B6AC37B400; Wed, 6 Dec 2000 17:26:20 -0800 (PST) Received: from grasshopper.cs.duke.edu (grasshopper.cs.duke.edu [152.3.145.30]) by duke.cs.duke.edu (8.9.3/8.9.3) with ESMTP id UAA03217; Wed, 6 Dec 2000 20:26:17 -0500 (EST) Received: (from gallatin@localhost) by grasshopper.cs.duke.edu (8.11.1/8.9.1) id eB71QHx20932; Wed, 6 Dec 2000 20:26:17 -0500 (EST) (envelope-from gallatin@cs.duke.edu) From: Andrew Gallatin MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Date: Wed, 6 Dec 2000 20:26:17 -0500 (EST) To: Wilko Bulte Cc: Terry Lambert , Mike Smith , freebsd-alpha@FreeBSD.ORG Subject: Re: Lynx test / 2nd attempt In-Reply-To: <20001206234557.A3309@freebie.demon.nl> References: <200012062053.eB6KrNF52293@mass.osd.bsdi.com> <200012062235.PAA25544@usr08.primenet.com> <20001206234557.A3309@freebie.demon.nl> X-Mailer: VM 6.43 under 20.4 "Emerald" XEmacs Lucid Message-ID: <14894.58877.158848.243199@grasshopper.cs.duke.edu> Sender: owner-freebsd-alpha@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Wilko Bulte writes: > I *think* SRM zeros the RAM for you. And in most cases you have to The SRM does not zero memory across warm reboots, at least. This gives us opportunities to screw things up royally, like the problem that jb was seeing with newly installed bootblocks working until a cold boot. Not zeroing also allows all sorts of opportunities for cool hacks. Like leaving the buffer cache warm in ram, rebooting a box, and not needing to read the data from back from disk. Have a look at http://www.eecs.umich.edu/Rio/papers/rioFileCacheTech.ps Drew To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message