From owner-freebsd-stable@FreeBSD.ORG Mon May 7 16:15:20 2007 Return-Path: X-Original-To: freebsd-stable@FreeBSD.ORG Delivered-To: freebsd-stable@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 25A4E16A407 for ; Mon, 7 May 2007 16:15:20 +0000 (UTC) (envelope-from olli@lurza.secnetix.de) Received: from lurza.secnetix.de (lurza.secnetix.de [83.120.8.8]) by mx1.freebsd.org (Postfix) with ESMTP id A3BAF13C458 for ; Mon, 7 May 2007 16:15:19 +0000 (UTC) (envelope-from olli@lurza.secnetix.de) Received: from lurza.secnetix.de (sxeryj@localhost [127.0.0.1]) by lurza.secnetix.de (8.13.4/8.13.4) with ESMTP id l47GFCuX032053; Mon, 7 May 2007 18:15:17 +0200 (CEST) (envelope-from oliver.fromme@secnetix.de) Received: (from olli@localhost) by lurza.secnetix.de (8.13.4/8.13.1/Submit) id l47GFCpp032048; Mon, 7 May 2007 18:15:12 +0200 (CEST) (envelope-from olli) Date: Mon, 7 May 2007 18:15:12 +0200 (CEST) Message-Id: <200705071615.l47GFCpp032048@lurza.secnetix.de> From: Oliver Fromme To: freebsd-stable@FreeBSD.ORG, marsgmiro@gmail.com In-Reply-To: <28edec3c0705021247s84ee50fwe7f70a839bbcb8bc@mail.gmail.com> X-Newsgroups: list.freebsd-stable User-Agent: tin/1.8.2-20060425 ("Shillay") (UNIX) (FreeBSD/4.11-STABLE (i386)) MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-2.1.2 (lurza.secnetix.de [127.0.0.1]); Mon, 07 May 2007 18:15:18 +0200 (CEST) Cc: Subject: Re: mfs and buildworlds on da SunFire x4600 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: freebsd-stable@FreeBSD.ORG, marsgmiro@gmail.com List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 07 May 2007 16:15:20 -0000 Mars G. Miro wrote: > Actually, it's not about having to finish building da world in da > smallest amount of time, it's about whether mfs would really speed > things up... I've made similar tests in the past, and my conclusion is that it's not worth it. Using a memory disk for /usr/obj doesn't make much sense, because soft-updates decouples the physical writes pretty well from the build process. On the other hand, using a memory disk for /usr/src _might_ help a little, but it depends on a lot of things. Especially if you have a speedy I/O system and plenty of RAM (so all of the files can be cached) and /usr/src is mounted with the "noatime" option, the difference is very small. By the way, please stop writing "da" instead of "the". It looks childish and makes your mails difficult to read, so it might prevent people from helping you. Best regards Oliver -- Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M. Handelsregister: Registergericht Muenchen, HRA 74606, Geschäftsfuehrung: secnetix Verwaltungsgesellsch. mbH, Handelsregister: Registergericht Mün- chen, HRB 125758, Geschäftsführer: Maik Bachmann, Olaf Erb, Ralf Gebhart FreeBSD-Dienstleistungen, -Produkte und mehr: http://www.secnetix.de/bsd "The ITU has offered the IETF formal alignment with its corresponding technology, Penguins, but that won't fly." -- RFC 2549