Date: Mon, 13 Jun 2011 18:40:03 +0100 From: Chris Rees <utisoft@gmail.com> To: Garrett Cooper <yanegomi@gmail.com> Cc: Doug Barton <dougb@freebsd.org>, freebsd-current@freebsd.org Subject: Re: rc.d script to load kernel modules Message-ID: <BANLkTikobRSTzLwh8ZT=LqZ14-w7ABe=Tg@mail.gmail.com> In-Reply-To: <BANLkTi=9HjYCEMwo4QJfmgAADZTx3SbC3g@mail.gmail.com> References: <4DF3E98B.40108@FreeBSD.org> <20110612085649.GA11503@DataIX.net> <4DF50AA1.9080607@FreeBSD.org> <E1QW0VI-000Ohl-K4@kabab.cs.huji.ac.il> <4DF63972.8070006@freebsd.org> <BANLkTi=fvm3P2Bc4MG2tWwi%2BZL_dfo0Y7g@mail.gmail.com> <BANLkTi=9HjYCEMwo4QJfmgAADZTx3SbC3g@mail.gmail.com>
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On 13 Jun 2011 18:24, "Garrett Cooper" <yanegomi@gmail.com> wrote: > > On Mon, Jun 13, 2011 at 10:00 AM, Chris Rees <utisoft@gmail.com> wrote: > > On 13 Jun 2011 17:24, "Julian Elischer" <julian@freebsd.org> 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
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