From owner-freebsd-questions@FreeBSD.ORG Thu Mar 15 01:48:08 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 06D0716A402 for ; Thu, 15 Mar 2007 01:48:08 +0000 (UTC) (envelope-from karol.kwiat@gmail.com) Received: from ug-out-1314.google.com (ug-out-1314.google.com [66.249.92.173]) by mx1.freebsd.org (Postfix) with ESMTP id 84D1613C457 for ; Thu, 15 Mar 2007 01:48:07 +0000 (UTC) (envelope-from karol.kwiat@gmail.com) Received: by ug-out-1314.google.com with SMTP id 71so137287ugh for ; Wed, 14 Mar 2007 18:48:06 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:reply-to:user-agent:mime-version:to:cc:subject:references:in-reply-to:x-enigmail-version:openpgp:content-type; b=TiZvfBgEVl+wli8yA6jjwQRtTTaEPXdrNsVbuV0bksuKx2PZ1EmU3guX1YMerxlrpb8oBiKA4M47O9FcW9vU46kRpn5UHxmiZy9SO/gHlNEW5HUTM6qsqatxePVc6UZrwzXsKUYETyD+WczNIBSu5C7NC8B7T1MLuGQURREXMYo= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:reply-to:user-agent:mime-version:to:cc:subject:references:in-reply-to:x-enigmail-version:openpgp:content-type; b=ta6RRO6OQfFh2H0QSApSk+On852K0G1Sze0Dh7qB3u94F7vzU5dKda3ySktOyVfUTRAaeaoxiHON7Ggv1SjQklTLfJNuk9oW49xv8xILMH6HXfXFzOTtPh2fLDwU/7YH1+2Iw60RwKCx26aFsX1nNX63S7m+12xFLdc8/laK+7A= Received: by 10.67.22.14 with SMTP id z14mr1978336ugi.1173923286031; Wed, 14 Mar 2007 18:48:06 -0700 (PDT) Received: from persephone.orchid.homeunix.org ( [84.10.174.25]) by mx.google.com with ESMTP id k28sm1603182ugd.2007.03.14.18.48.05; Wed, 14 Mar 2007 18:48:05 -0700 (PDT) Message-ID: <45F8A5BE.20704@gmail.com> Date: Thu, 15 Mar 2007 02:47:42 +0100 From: Karol Kwiatkowski User-Agent: Thunderbird 2.0b2 (X11/20070306) MIME-Version: 1.0 To: Gary Kline References: <20070315011651.GA1524@thought.org> In-Reply-To: <20070315011651.GA1524@thought.org> X-Enigmail-Version: 0.94.3.0 OpenPGP: id=06E09309; url=http://www.orchid.homeunix.org/carlos/gpg/0x06E09309.asc Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="------------enigC2D711D706CAB3D6A10F0EF7" Cc: freebsd-questions@freebsd.org Subject: Re: Optimizationn questions? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: karol.kwiat@gmail.com List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 15 Mar 2007 01:48:08 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigC2D711D706CAB3D6A10F0EF7 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Gary Kline wrote: > Two quick one for kernel and/or compiler wizards: first, is > a 400Mz processor considered a 586 (for my KERNELCONF file)? That depends on processor architecture rather than clock frequency. Have a look at dmesg output - for example, Intel Celeron 400Mhz is a 686 class processor (I686_CPU in the kernel configuration file): % dmesg % [...] % CPU: Pentium II/Pentium II Xeon/Celeron (400.91-MHz 686-class CPU) % [...] > Second, is it safe to do a buildworld with -O3? If there are > stability concerns, I'll go with the default when I rebuild my > 6.2 systems. If you're going to do stability/performance/compatibility tests go ahead. In any other situation just stick with the defaults, which on 6.2-RELEASE for my Celeron are: # (cd /usr/src && make -V CFLAGS ) -O2 -fno-strict-aliasing -pipe -march=3Dpentiumpro Note that '-march=3Dpentiumpro' comes from setting 'CPUTYPE=3Di686' in /etc/make.conf (examples in /usr/share/examples/etc/make.conf). HTH, Karol --=20 Karol Kwiatkowski OpenPGP 0x06E09309 --------------enigC2D711D706CAB3D6A10F0EF7 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (FreeBSD) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFF+KXGezeoPAwGIYsRCMfbAKCqzt9ptH6LWvu4yc3YrCRwSKl86wCgl2PN mkDWllebiYTciqKLLMmo5LM= =bSsW -----END PGP SIGNATURE----- --------------enigC2D711D706CAB3D6A10F0EF7--