From owner-freebsd-current@FreeBSD.ORG Mon Jun 13 17:40:06 2011 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 8BA86106566C; Mon, 13 Jun 2011 17:40:06 +0000 (UTC) (envelope-from utisoft@gmail.com) Received: from mail-iw0-f182.google.com (mail-iw0-f182.google.com [209.85.214.182]) by mx1.freebsd.org (Postfix) with ESMTP id 1A1768FC1A; Mon, 13 Jun 2011 17:40:05 +0000 (UTC) Received: by iwn33 with SMTP id 33so5887763iwn.13 for ; Mon, 13 Jun 2011 10:40:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=wq0CIpJTvvVvqpvp8kpIRovpyafEmQzZ0XC76YnXyXg=; b=clUXSrMhdWOAGnwwFNspBuahg4MzJfAS25HsZ1Po93QCt0JkeJLvSEMkTybzNKwaTL nGMym4T8wvgm+eQwOgyimJb+rrU6MJTxqDpinvxXPNU2jWUR2h4sNyBla+k8c063YL6N ZnHLfcHxaJw/bAucV6Z9b3FCJ7pV8QcHY+bNk= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=iakBortusVh2Au5mLMyDu0OLFOWTLqxFSTF6ZQgo51fo3xZjNV9ufrAgIpYwLCi7Ln 1WlUqJgfTO099+CQg5NEwrgexeVc6kTIRg4MdGdQlcis3KyFPJLb7sIr7dID/u6zchS8 CSQozIABCVDqAWDcRlq6SLeSPsBVgyY/Wue3Y= MIME-Version: 1.0 Received: by 10.42.74.72 with SMTP id v8mr6594400icj.282.1307986803919; Mon, 13 Jun 2011 10:40:03 -0700 (PDT) Received: by 10.231.174.70 with HTTP; Mon, 13 Jun 2011 10:40:03 -0700 (PDT) Received: by 10.231.174.70 with HTTP; Mon, 13 Jun 2011 10:40:03 -0700 (PDT) In-Reply-To: References: <4DF3E98B.40108@FreeBSD.org> <20110612085649.GA11503@DataIX.net> <4DF50AA1.9080607@FreeBSD.org> <4DF63972.8070006@freebsd.org> Date: Mon, 13 Jun 2011 18:40:03 +0100 Message-ID: From: Chris Rees To: Garrett Cooper Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: Doug Barton , freebsd-current@freebsd.org Subject: Re: rc.d script to load kernel modules 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: Mon, 13 Jun 2011 17:40:06 -0000 On 13 Jun 2011 18:24, "Garrett Cooper" wrote: > > On Mon, Jun 13, 2011 at 10:00 AM, Chris Rees wrote: > > On 13 Jun 2011 17:24, "Julian Elischer" wrote: > >> > >> On 6/12/11 11:20 PM, Daniel Braniss wrote: > >>>> > >>>> On 6/12/2011 1:56 AM, Jason Hellenthal wrote: > >>>> > >>>>> Cutting modules out of the kernel in general does help speed up booting > >>>>> but loading those same modules later in the boot process will just lead > >>>>> you back to the same boot time. > >>>> > >>>> Loading modules via loader.conf is many times slower than doing it from > >>>> disk after the system is partially booted. (As in, 2-3 seconds per > >>>> module vs. nearly instantaneous for all 6.) > >>>> > >>>> I didn't offer my list as an example of what to do, I offered it as a > >>>> syntax example. I would of course expect people to use appropriate > >>>> discretion to load things in loader.conf that are necessary for boot. > >>>> (Of course, the fact that people can easily get this wrong is a strike > >>>> against the technique.) > >>>> > >>>> There is no point in having an _enable for this script because if the > >>>> kld_list is empty, nothing happens. > >>>> > >>> Doug's solution is what we have been using for a very long time! > >>> > >>> the loader.conf solution is not practical when it's shared among many > >>> hosts -like here where most of the hosts are dataless-, so, moving the > > not > >>> essential ones to rc.conf was the obvious solution. > >> > >> > >> what would be REALLY cool would be the ability to make loader.conf have > > some sort of conditional > >> clauses.. > >> > >> e.g. if MAC== 01:02:03:04:05:06 > >> blah > >> > >> > > > > Isn't it just a shell script? > > The values are eval'ed from Forth-code, not /bin/sh -- so it's not > a shell script in the way that you're generally used to :). > But yes, it could be made conditional. I was talking about rc.conf.... is that Forth too? Chris