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Date: Fri, 12 Mar 2004 04:46:16 -0800
From: Kris Kennaway <kris@obsecurity.org>
To: Donald Burr <dburr@borg-cube.com>
Message-ID: <20040312124616.GA41188@xor.obsecurity.org>
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cc: List FreeBSD Questions <freebsd-questions@freebsd.org>
Subject: Re: How much difference does 'gcc -O<x>' make?
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On Fri, Mar 12, 2004 at 02:07:26AM -0800, Donald Burr wrote:
> A question occurred to me today.  How much difference does 'gcc -O<x>'=20
> make in the speed of my system?
>=20
> I notice some ports that claim to not work properly if compiled with=20
> -O<x> (the one that comes to mind right away is XFree86 4.x, but I've=20
> seen others) and I am thinking of just turning OFF -O<x> option in my=20
> /etc/make.conf.  I'm just wondering how much of an impact this will=20
> have on system performance.

I think you're misunderstanding: -O is almost universally fine, it's
higher settings (-O2, etc) that are recommended against.

Kris

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