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Date:      Thu, 26 May 2005 12:12:39 -0400 (EDT)
From:      "Mike Jakubik" <mikej@rogers.com>
To:        "Kris Kennaway" <kris@obsecurity.org>
Cc:        freebsd-amd64@freebsd.org
Subject:   Re: amd64 optimized gcc?
Message-ID:  <2302.172.16.0.199.1117123959.squirrel@172.16.0.1>
In-Reply-To: <20050526155612.GA38421@xor.obsecurity.org>
References:  <200505251317.22128.nb_root@videotron.ca> <429514AF.5000306@roq.com> <20050526155612.GA38421@xor.obsecurity.org>

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On Thu, May 26, 2005 11:56 am, Kris Kennaway said:
> On Thu, May 26, 2005 at 10:13:35AM +1000, Michael VInce wrote:

>> for warranty to come through on my old one. I did a buildworld under
>> 'CPUTYPE=athlon64' in make.conf and 'CFLAGS=
>> -O2 -pipe -funroll-loops' for the the kernel.
>> I also used both to build all my ports including xorg and KDE.
>>
>
>> All this combined has made my laptop feel a lot faster.
>>
>
> Google for 'placebo effect' :-) Unfortunately, leet optimization flags
> do not measurably effect everyday system performance, only specific
> CPU-intensive operations.

Tell that to the Gentoo people :)





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