From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id 1252A138956 for ; Sun, 10 Feb 2013 02:34:07 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 9DC3C21C02C; Sun, 10 Feb 2013 02:33:58 +0000 (UTC) Received: from mail-ob0-f182.google.com (mail-ob0-f182.google.com [209.85.214.182]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id F337221C007 for ; Sun, 10 Feb 2013 02:33:56 +0000 (UTC) Received: by mail-ob0-f182.google.com with SMTP id va7so5044504obc.41 for ; Sat, 09 Feb 2013 18:33:56 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:x-received:in-reply-to:references:date:message-id :subject:from:to:content-type; bh=2Ur5t7IzmHUQ+9EVoFSGPrC4S3WkwvgpjbavlpRa3zs=; b=lbsEHi4Djql1lML6k8qq0tnocTjZOo8rhrykYKlEtpg1A5fVYbFRL6dHOdRXJ3HtH2 lbWsYOa2rAWTLpPdDBV/U6nWjzAf6htguGelngqaMI6+NAT1gfOwNFfjFEOvuJCDGoi9 n+5G5d+ZLwL53Iz1VJeWAvshXudD/6dG/YoBhBbeiuJo2CzqwqvLvcHx2jMOvuS5G8nS Hb5bv6rYbo+deLfoBusk8sp0C1sRqJSluWRchCf2rdbyGTeKulyba4X/HBuLmezNA8iA 6sRcRgWbR02ovk7OwvAsRx+D6Li2tiffBe7ok5v0Qpr367YrYnL5pKRPP6jmqoLRgzWU kM3A== Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 X-Received: by 10.60.172.237 with SMTP id bf13mr7826145oec.83.1360463635998; Sat, 09 Feb 2013 18:33:55 -0800 (PST) Received: by 10.60.16.135 with HTTP; Sat, 9 Feb 2013 18:33:55 -0800 (PST) In-Reply-To: <1360450014.29908.1.camel@klyde> References: <20130209011037.GA11071@waltdnes.org> <1360375618.20304.11.camel@klyde> <1360450014.29908.1.camel@klyde> Date: Sun, 10 Feb 2013 13:33:55 +1100 Message-ID: Subject: Re: [gentoo-user] Re: multiple installs From: Adam Carter To: "gentoo-user@lists.gentoo.org" Content-Type: multipart/alternative; boundary=bcaec54b4aa2c0e94804d5559f94 X-Archives-Salt: 65f32acc-87af-47d4-9ec4-f953f8973482 X-Archives-Hash: 6e23158ebc760a92f9ff6372ad5faad5 --bcaec54b4aa2c0e94804d5559f94 Content-Type: text/plain; charset=ISO-8859-1 > > That might even depend on the compiler version anyway. But, I agree. > Building with -march=athlon (I think it's athlon?) on one FX machine and > copying to the rest would be fastest. > > Good call, I missed that. Of course it makes much more sense to build on a fast FX box with -j8, but have CFLAGs for the X2, which according to the safe cflags wiki ( http://en.gentoo-wiki.com/wiki/Safe_Cflags/AMD#Athlon_64_X2) is: CHOST="x86_64-pc-linux-gnu" CFLAGS="-march=k8 -O2 -pipe" CXXFLAGS="${CFLAGS}" --bcaec54b4aa2c0e94804d5559f94 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable

=

That might even depend on the compiler version anyway. =A0But, I agree.
Building with -march=3Dathlon (I think it's athlon?) on one FX machine = and
copying to the rest would be fastest.


Good call, I missed that. Of course it makes much more sense to build= on a fast FX box with -j8, but have CFLAGs for the X2, which according to = the safe cflags wiki (http://en.gentoo-wiki.com/wiki/Safe_Cflags/AMD#Athlon_64= _X2) is:
CHOST=3D"x86_64-pc-linux-gnu"
CFLAGS=3D"-march=3Dk8 -O2 -pipe"
CXXFLAGS=3D"${CFLAGS}"

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