Date: Thu, 21 Sep 2000 13:44:25 -0500 From: Glenn Johnson <gjohnson@nola.srrc.usda.gov> To: "S. David Pullara" <sdpullara@telus.net> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Intel cpu's and the -march switch Message-ID: <20000921134425.A91788@node1.cluster.srrc.usda.gov> In-Reply-To: <14794.8801.494001.718949@yuggoth.warpedspace.org>; from sdpullara@telus.net on Thu, Sep 21, 2000 at 07:59:45AM -0700 References: <14794.8801.494001.718949@yuggoth.warpedspace.org>
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On Thu, Sep 21, 2000 at 07:59:45AM -0700, S. David Pullara wrote: > Can anyone tell me if compiling with gcc's -march and -mcpu options > will make any difference? I have an AMD K6 (586-class) cpu and I have > no idea if recompiling the kernel (and other apps) with those switches > is going to result in any improvement. Does anyone know? You will not notice any perceptible performance improvement but you may notice your kernel and/or programs acting strangely after compiling with those options. I would recommend that you _not_ bother with the -march or -mcpu options. -- Glenn Johnson USDA, ARS, SRRC Phone: (504) 286-4252 New Orleans, LA 70124 e-mail: gjohnson@nola.srrc.usda.gov To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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