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Date:      Fri, 27 Apr 2001 18:08:34 -0700
From:      Kris Kennaway <kris@obsecurity.org>
To:        User Witr <witr@rwwa.com>
Cc:        Alfred Perlstein <bright@wintelcom.net>, stable@FreeBSD.ORG
Subject:   Re: Trouble with 4.3-RELEASE compiler
Message-ID:  <20010427180834.B24927@xor.obsecurity.org>
In-Reply-To: <200104280035.UAA11427@ns1.rwwa.com>; from witr@rwwa.com on Fri, Apr 27, 2001 at 08:38:30PM -0400
References:  <20010427155725.L18676@fw.wintelcom.net> <200104280035.UAA11427@ns1.rwwa.com>

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On Fri, Apr 27, 2001 at 08:38:30PM -0400, User Witr wrote:
>=20
> bright@wintelcom.net said:
> :-As far as I know FreeBSD doesn't support nor recommened compiling
> :-things (especially large mission critical programs) with anything
> :-higher than -O.=20
>=20
> Out of curiosity, how much potential performance is FreeBSD throwing
> away by banning -O2 and -O3?  To my naive eyes it would seem better
> to light that candle (try fix the -O2 bug) than curse the darkness.
> Assuming there is significant performance gain and there truly is only
> one major -O2 bug.  -O2 used to be considered "safe" didn't it?

It's not that significant in many cases, it's mostly just useful to
make you feel studly about how massively optimized your system must
be.

Kris

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