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Date:      Mon, 7 Aug 2000 15:52:35 -0400 (EDT)
From:      Adam <bsdx@looksharp.net>
To:        freebsd-chat@FreeBSD.ORG
Cc:        dan@langille.org
Subject:   Re: make world takes 7 days
Message-ID:  <Pine.BSF.4.21.0008071547420.37845-100000@turtle.looksharp.net>
In-Reply-To: <200008031214.OAA81266@dorifer.heim3.tu-clausthal.de>

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On Thu, 3 Aug 2000, Oliver Fromme wrote:

>In list.freebsd-chat Dan Langille <dan@langille.org> wrote:
> > 486DX at 1193182 Hz with 12288K bytes.
>
>What's the clock speed of the processor?  Those 1193182 Hz
>is the hardware timer rate, not the processor clock rate.
>I don't think intel ever made 486's with 1.2 MHz.  ;-)
>
> > [...]
> > The build world started at 1100 on July 28th. 
> > It finished at 14:53 on August 3.
>
>That's probably because there's not enough RAM.  With only
>12 Mbyte, it has to swap quite a bit during make world.
>Put a bit more RAM into it, and it will be considerably
>faster.

On this note, if you compile and install a slim kernel before the whole
process (preferrably of the sources from the os ver installed) you can
free up several precious megs of ram which might shave days off the
process :-)  I did a 4.1 install on a 486/66 8m the other day, and the
boot kernel reported only 2000K memory free after the kernel loaded.  I
think it was even swapping during the install.  Once the generic kernel
had booted, it had 4+ megs free.  After I compiled a conservative kernel
with enough to run the system and have network access, there was about 6
megs free.  suprisingly, removing softupdates, most networking, and maybe
a few other things trimmed it down only ~250k further.  If you have enough
disk to build locally, you could probably trim quite a few features out of
the kernel (networking, serial, parallel, etc) just for the buildworld
process. 



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