From owner-freebsd-current@FreeBSD.ORG Sat Jul 19 05:24:07 2008 Return-Path: Delivered-To: freebsd-current@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 72D90106566B for ; Sat, 19 Jul 2008 05:24:07 +0000 (UTC) (envelope-from dougb@FreeBSD.org) Received: from mail2.fluidhosting.com (mx23.fluidhosting.com [204.14.89.6]) by mx1.freebsd.org (Postfix) with ESMTP id F26818FC1B for ; Sat, 19 Jul 2008 05:24:06 +0000 (UTC) (envelope-from dougb@FreeBSD.org) Received: (qmail 19666 invoked by uid 399); 19 Jul 2008 05:24:06 -0000 Received: from localhost (HELO lap.dougb.net) (dougb@dougbarton.us@127.0.0.1) by localhost with ESMTPAM; 19 Jul 2008 05:24:06 -0000 X-Originating-IP: 127.0.0.1 X-Sender: dougb@dougbarton.us Message-ID: <48817A75.7080206@FreeBSD.org> Date: Fri, 18 Jul 2008 22:24:05 -0700 From: Doug Barton Organization: http://www.FreeBSD.org/ User-Agent: Thunderbird 2.0.0.14 (X11/20080606) MIME-Version: 1.0 To: Alexander Leidinger References: <200807172056.08835.naylor.b.david@gmail.com> <487FCA89.2010308@FreeBSD.org> <20080718083725.97823be0tg13fn6s@webmail.leidinger.net> In-Reply-To: <20080718083725.97823be0tg13fn6s@webmail.leidinger.net> X-Enigmail-Version: 0.95.6 OpenPGP: id=D5B2F0FB Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-current@FreeBSD.org Subject: Re: rc improvements (wanted?) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 19 Jul 2008 05:24:07 -0000 Alexander Leidinger wrote: > Quoting Doug Barton (from Thu, 17 Jul 2008 > 15:41:13 -0700): > >>> The main reason for this work was to increase start-up time (on >>> the userland side) by running as many scripts concurrently as >>> possible. >> >> How are you running the scripts concurrently, and the key >> question, have you actually benchmarked your changes to >> demonstrate that they result in statistically significant >> changes. > > Are you aware that the parallel starting in Solaris 10 reduced the > booting time by a nice percentage? If I say yes, do I get a cookie? > If yes, do you expect that FreeBSD behaves significantly different > or do you "just" want to see numbers? Don't rule out "all of the above." :) More to the point: 1. I'm pretty familiar with how the current system works, and I also know that we've already plucked all the low hanging fruit. 2. I know that the existing system is not exactly what I'd call "fragile," but it's not exactly what I'd call "bulletproof" either, and therefore anything that proposes to change it dramatically needs to have a serious cost/benefit analysis performed before we go down that road. Doug -- This .signature sanitized for your protection