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From: Lowell Gilbert <freebsd-questions-local@be-well.ilk.org>
To: freebsd-questions@freebsd.org
Subject: Re: FreeBSD working from RAM (MFSROOT) as a Workstation.
References: <1417734458.1772.1.camel@zoho.com> <447fy665uf.fsf@be-well.ilk.org>
 <20141205131229.5ebd96d2@gumby.homeunix.com>
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Date: Fri, 05 Dec 2014 10:48:17 -0500
In-Reply-To: <4461dqf6ui.fsf@lowell-desk.lan> (Lowell Gilbert's message of
 "Fri, 05 Dec 2014 10:34:45 -0500")
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Oops. Sent that last message before I meant to. One more comment.

RW <rwmaillists@googlemail.com> writes:

> An alternative might be to do a conventional boot and then kick-off a
> background script that pre-caches as much of the SSD as will fit in the
> remaining free memory. I'd try this first because it's a lot less
> trouble and will give a reasonable indication of how much thing can be
> speeded-up (at least until the cache is driven-out by something else).

I used to do something like this back when disks were slower. I can't
remember why I stopped. Rather than boot time, it started a few seconds
after I started an X session. I recall I spent a little time tuning it
to minimize CPU consumption, but nothing all that tricky. Maybe I'll dig
it out of my backups and see if it's a noticeable help today.