Date: Thu, 11 Oct 2001 18:47:46 -0700 From: Kris Kennaway <kris@obsecurity.org> To: "Jeffrey J. Libman" <jeffrl@wantabe.com> Cc: freebsd-stable@FreeBSD.ORG Subject: Re: code optimized for cpu Message-ID: <20011011184746.A48690@xor.obsecurity.org> In-Reply-To: <Pine.BSF.4.21.0110071505200.32578-100000@cutter.wantabe.com>; from jeffrl@wantabe.com on Sun, Oct 07, 2001 at 03:08:01PM -0500 References: <Pine.BSF.4.21.0110071505200.32578-100000@cutter.wantabe.com>
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[-- Attachment #1 --] On Sun, Oct 07, 2001 at 03:08:01PM -0500, Jeffrey J. Libman wrote: > i am replacing old servers with newer hardward (and o/s version) and i > want to make sure i understand something correctly. > > it is my understanding that freebsd (i'm using 4.3 stable) can optimize > its code for a pentium III cpu, but not for the newer pentium IV's. is > this correct? should i specifically shop for pIII chips and boards? The version of gcc in FreeBSD doesn't have optimizations specifically targetted for intel CPUs newer than the pentium pro. Newer CPUs will only get benefits by virtue of looking like a faster Pentium Pro. I think the recently released gcc 3.x has optimizations for newer CPUs, but that's yet to be imported even into -current. Kris [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (FreeBSD) Comment: For info see http://www.gnupg.org iD8DBQE7xkvCWry0BWjoQKURAk+VAJoCLx+19xno7kvnMGF9wRLmVyZqMgCfScM6 tJv7wzspHEsUOjq89OX9ysw= =Xism -----END PGP SIGNATURE-----help
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