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Date:      Sun, 2 Jan 2000 03:37:54 +0100 (CET)
From:      Marc Schneiders <marc@oldserver.demon.nl>
To:        Andrew MacIntyre <andymac@bullseye.apana.org.au>
Cc:        Greg Lehey <grog@lemis.com>, freebsd-questions@FreeBSD.ORG
Subject:   Re: 4 MB RAM? (long)
Message-ID:  <Pine.BSF.4.10.10001020322200.69746-100000@propro.oldserver.demon.nl>
In-Reply-To: <Pine.OS2.3.95.991231185008.407A-100000@CENTRAL>

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On Fri, 31 Dec 1999, Andrew MacIntyre wrote:

> On Thu, 30 Dec 1999, Marc Schneiders wrote:
> 
> > There is 24 MB of swap. I have looked at top a number of times and
> > there was only little of it used. Maybe the daily checks take a lot of
> > it? I will throw them out first and see what happens.
> 
> I think you mention that this machine has 2 drives - if so, it might be
> worth the pain to rearrange your partitioning so that the swap is spread
> equally over both drives, as I understand that FreeBSD interleaves access
> to swap (probably works better with SCSI than IDE though...).
> 

The machine I am testing this on has two drives, because one was too
small :-) The laptop has just one drive, big enough though.

> You mention that your current kernel is ~1.5M - just for reference I have
> a 2.2.6R server (486) with a ~1.15M kernel (2.2.6R GENERIC is ~1.5M) and a
> 3.2R SMP workstation (C300Ax2) with a ~1.75M kernel (3.2R GENERIC is
> ~2.3M). Both boxes have a trimmed config, though the 3.2 box has sound and
> a couple of other "extras".

My SMP desktop runs CURRENT. Kernel is now 1.69M (no sound). I would
love to have a list of what parts take up space and what don't. I
could make one myself of course :-) I am going to try it on the laptop
with CURRENT after all, as it will be a bit of a problem to set up a
box with 3.X sources on it to compile a new kernel. I've changed to
4.0 some time ago, because someone advised me to in relation with SMP
matters.

For those who are interested: It *is* possible to run a http-server on
4 MB. Not apache (not that I tried it), but boa, which is in the
ports. It is small (under 1M). It doesn't fork, except for CGI, which
I did not try. I ran a webcam (refresh 30 secs) on it and the box was
able to serve 4 machines simultaneously on my LAN for hours. No
problems at all on 4 MB on a 486 DX 66 with 4.0 CURRENT of beginning
of december 1999.

I have changed just one thing about the config of the box: done away
with the daily (etc) checks. These froze it, as I mentioned earlier. 
 
--
Marc Schneiders

marc@venster.nl
marc@oldserver.demon.nl

propro         	  3:22am  up   2 days,   5:11,  load average: 2.09 2.05 2.02



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