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Date:      Sun, 25 Aug 1996 00:47:40 +0200
From:      roberto@keltia.freenix.fr (Ollivier Robert)
To:        current@freebsd.org
Subject:   Re: Speedingup the "worldstone"
Message-ID:  <199608242247.AAA20926@keltia.freenix.fr>
In-Reply-To: <199608241748.LAA02804@rover.village.org>; from Warner Losh on Aug 24, 1996 11:48:45 -0600
References:  	<199608241748.LAA02804@rover.village.org>

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According to Warner Losh:
> have an old 486 DX2-66 that I'd like to get the most out of when it
> comes to building the world, since it takes just about exactly 9 hours

I'm surprised. My old 486DX/33, before I put a DX4/100 was taking almost
the same time for a "make world".

> by an UltraStor 34F controller.  The second drive is where /usr is
> mounted from also.  Would I gain by a third drive that had /usr/obj on
> it?  I have a 500M hard disk that I could use for this if it would be
> a big (>20%) win.

Mount /usr/obj async.
 
> I already have 32M of memory, so I'm not memory limited.  Are there
> some options that would allow me to take advantage of this memory?  If
> I run top while doing a make world, I see that gcc only uses about 20M
> or so of memory.

Do you use top  "-pipe" option to gcc ? If not, use it.

> Since I only do a clean make world about once a month or so, this
> isn't a huge deal.

Use -DNOCLEAN if you don't want it to rebuild everything even if it has not
changed.

-- 
Ollivier ROBERT    -=- The daemon is FREE! -=-    roberto@keltia.freenix.fr
FreeBSD keltia.freenix.fr 2.2-CURRENT #18: Sun Aug 18 19:16:52 MET DST 1996



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