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Date:      16 Mar 2000 13:38:56 +0100
From:      naddy@mips.rhein-neckar.de (Christian Weisgerber)
To:        freebsd-current@freebsd.org
Subject:   Re: gcc -Os optimisation broken (RELENG_4)
Message-ID:  <8aqkl0$1a72$1@bigeye.rhein-neckar.de>
References:  <38CF48CF.59A100D7@altavista.net> <8ap8qe$hvj$1@bigeye.rhein-neckar.de> <38D08908.C629B55E@gorean.org>

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Doug Barton <Doug@gorean.org> wrote:

> 	Hmm... If I have a PII (Actually celeron 300A) or a PIII, which is
> better, 'pentium' or 'pentiumpro'? I would think the latter, but I've

I have to admit that I kind of lost track of Intel's Pentium du
jour offerings after the PPro, but I think PII and PIII use i686
cores or at least something closest to i686, so I'd use -mpentiumpro
there. I don't pretend to have any idea what's appropriate for the
various AMD/Cyrix/IDT/etc processors.

The machines where I use -mpentium and -mpentiumpro, respectively,
are an actual Intel Pentium and a (dual) Intel Pentium Pro. Yes,
there are people out there who don't buy a new machine each quarter.

> 	Also, I have heard conflicting reports as to whether compiling the
> kernel/world with optimisations is a good thing. Anyone care to (re)open
> that can of worms?

No new worms in there, I suspect.

-- 
Christian "naddy" Weisgerber                  naddy@mips.rhein-neckar.de



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