From: Xavier Miller <xavier.miller@cauwe.org>
To: Mark Knecht <markknecht@gmail.com>
Cc: John Kacur <jkacur@redhat.com>, RT <linux-rt-users@vger.kernel.org>
Subject: Re: Best gcc flags?
Date: Sat, 23 Jan 2010 21:11:34 +0100 [thread overview]
Message-ID: <4B5B57F6.3050304@cauwe.org> (raw)
In-Reply-To: <5bdc1c8b1001221458j74d36fdbl3f154f8b539791dd@mail.gmail.com>
Hello,
Don't play with CFLAGS/LDFLAGS. -march=native will let GCC find the best
(and most sable) options for your compiler.
Playing with unsafe CFLAGS/LDFLAGS will produce unstable system, hard to
debug.
Kind regards,
Xavier Miller.
Le 22/01/10 23:58, Mark Knecht a écrit :
> On Fri, Jan 22, 2010 at 2:09 PM, John Kacur <jkacur@redhat.com> wrote:
>> On Fri, Jan 22, 2010 at 7:54 PM, Mark Knecht <markknecht@gmail.com> wrote:
>>> Hi,
>>> I've got a new Intel Core i5-661 machine that I'm loading Gentoo
>>> on. I wonder if anyone here has any strong opinion son the best gcc
>>> options for this sort of machine and specifically what makes for the
>>> best rt performance?
>>>
>>
>> AFAIK, there are no -rt specific requirements for gcc, just use what you
>> would normally use.
>>
>> John
>>
>
> Yes that's my understanding also, but this is a brand new machine to
> me, Gentoo based where I can set all my gcc flags pretty easily, and
> for the Core i5-661 I'm not finding much info on what's recommended
> for gcc. -march=native? Or maybe use specific settings such as those
> for an i7?
>
> I'm just grasping around for ideas mostly.
>
> Thanks!
>
> - Mark
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next prev parent reply other threads:[~2010-01-23 20:11 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-22 18:54 Best gcc flags? Mark Knecht
2010-01-22 22:09 ` John Kacur
2010-01-22 22:58 ` Mark Knecht
2010-01-23 20:11 ` Xavier Miller [this message]
2010-01-23 22:27 ` Mark Knecht
2010-01-24 13:45 ` Xavier Miller
2010-01-24 15:36 ` Mark Knecht
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