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From: j@narcisa.sax.de (J Wunsch)
Newsgroups: comp.os.386bsd.questions
Subject: Re: Suggestion on recompiling kernel
Date: 13 Mar 1995 11:13:42 +0100
Organization: Private U**x site, Dresden.
Lines: 36
Message-ID: <3k15sm$e9s@bonnie.tcd-dresden.de>
References: <3jm3eb$dkl@news.bu.edu> <MICHAELV.95Mar8223323@MindBender.HeadCandy.com> <3jocmf$fja@everest.dtr.com>
Reply-To: joerg_wunsch@uriah.heep.sax.de
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Brant Katkansky <bmk@dtr.com> wrote:
>>Michael L. VanLoon <michaelv@MindBender.HeadCandy.com> wrote:
>>>In article <3jm3eb$dkl@news.bu.edu> mi@cs.bu.edu (Mikhail Teterin) writes:
>>>
>>> Suggestion that can save hours of rebuilding. After changing your
>>> config
>>
>>*HOURS*???
He didn't tell us about his machine, Michael. Once i gave a guy here
the FreeBSD 1.1 CD. He later complained that the kernel took 3 hours
to compile -- he installed the thingy on a 386sx/20 with just 3 MB of
RAM. 8^)
>The kernel on my gateway takes ~41 minutes to compile after the
>"config KERNEL". This was done when the system was (reasonably)
>lightly loaded. This is FreeBSD 2.0-950210-SNAP. The GENERIC kernel
>compiles only a few minutes faster.
This SNAP did already have the merged VM/buffer cache, which suffered
from some optimization problems back in those days. Remember: SNAP's
are not expected to be of production quality.
A kernel from less than one week ago already compiles *way* faster,
David Greenman & Co did a great work.
However, you can live with the SNAP, but you might do a good deal by
rebooting after anything that referenced a large number of files (like
a kernel build, cvs update :) or a large make).
--
cheers, J"org private: joerg_wunsch@uriah.heep.sax.de
http://www.sax.de/~joerg/
Never trust an operating system you don't have sources for. ;-)