From owner-freebsd-current@FreeBSD.ORG Mon Jun 13 17:24:17 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 77529106566B; Mon, 13 Jun 2011 17:24:17 +0000 (UTC) (envelope-from yanegomi@gmail.com) Received: from mail-vw0-f54.google.com (mail-vw0-f54.google.com [209.85.212.54]) by mx1.freebsd.org (Postfix) with ESMTP id E8E3F8FC12; Mon, 13 Jun 2011 17:24:16 +0000 (UTC) Received: by vws18 with SMTP id 18so5492734vws.13 for ; Mon, 13 Jun 2011 10:24:16 -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 :content-transfer-encoding; bh=22SFP3w66CzqXIOF8JJ+VpeVtk4djOB/oIMkWYhgIW4=; b=reS1K1J3fAMAkftX7rKBjh8kAGzbqWOoHoBnkkrgDTbpy0OZ7bwAwh1WF8y8F+SKcH D4kYAgjTwuPWgXZcNwcO7EUl8/q5KPY3TAgMiEZQXGhSdsN5ey1IO56UnRhjuKBWyIgQ +tKh11WNWRxcQutfsmaoObuu2SGR3m10yNsmA= 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:content-transfer-encoding; b=Ucrhl2+WzWQp1yVJlWh5vHMxXe/3biw+dTFcQhot6yw4Y1kDEQLFiE5XcHwyXSNaie iHg8e6HPgrVtULya8OAJ7L/V52ZYp9A0VCsoR2qqOe7PLSOt8IBQGUm2XF664KvHGyZA 453yK7XHkthnYfkikEqZKI+kj1b9boruYbCpA= MIME-Version: 1.0 Received: by 10.220.177.9 with SMTP id bg9mr2111716vcb.93.1307985855920; Mon, 13 Jun 2011 10:24:15 -0700 (PDT) Received: by 10.220.189.202 with HTTP; Mon, 13 Jun 2011 10:24:15 -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 10:24:15 -0700 Message-ID: From: Garrett Cooper To: Chris Rees Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: freebsd-current@freebsd.org, Doug Barton 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 17:24:17 -0000 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 booti= ng >>>>> but loading those same modules later in the boot process will just le= ad >>>>> you back to the same boot time. >>>> >>>> Loading modules via loader.conf is many times slower than doing it fro= m >>>> 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=3D=3D 01:02:03:04:05:06 >> =A0 =A0 =A0 =A0 =A0blah >> >> > > 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. Thanks! -Garrett