Date: Mon, 13 Jun 2011 18:00:04 +0100 From: Chris Rees <utisoft@gmail.com> To: Julian Elischer <julian@freebsd.org> Cc: freebsd-current@freebsd.org, Doug Barton <dougb@freebsd.org> Subject: Re: rc.d script to load kernel modules Message-ID: <BANLkTi=fvm3P2Bc4MG2tWwi%2BZL_dfo0Y7g@mail.gmail.com> In-Reply-To: <4DF63972.8070006@freebsd.org> 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>
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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?
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