From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([69.77.167.62] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1LUjwZ-0002Ai-MH for garchives@archives.gentoo.org; Wed, 04 Feb 2009 15:45:40 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 2ABBCE063C; Wed, 4 Feb 2009 15:45:37 +0000 (UTC) Received: from fg-out-1718.google.com (fg-out-1718.google.com [72.14.220.152]) by pigeon.gentoo.org (Postfix) with ESMTP id CA29CE063C for ; Wed, 4 Feb 2009 15:45:36 +0000 (UTC) Received: by fg-out-1718.google.com with SMTP id e12so1367143fga.14 for ; Wed, 04 Feb 2009 07:45:36 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type :content-transfer-encoding; bh=LI6RwZR/cFMn2XBjd0Nkx7ibEr79v12rqqmeNTpo+8E=; b=ObluHjDBsgoCsY+COyPo16YYAjz2CHhjpnNkIOQJEjmdECGQPb6MZfTVsTxP/TFIQm y0CjbPwr7KMMLF2GJzveNyMyyYSCOmKHTs7DcsBOaCKnBP8JAec62WPfLCZtR4+rxXgN ZnlZsycd05pW0lg8oOgpX9CQDc12Kdd4QehZU= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; b=v58/iyFr0it/wgPV+rRK0pvqVfT9QtKAVDj6RZ7USGAOMRNjUFcMHF+KwGQC/jwTT1 u2+nn7hrSdOVR+D0Gll+EPeAFmCRdmtO9eqIRfEEolSGDEhcgSQGLEur0Q5/B7Pot4L7 WKatxJsOzG3UJ2AS+/wEUVD9Etah0mqHiZHbI= 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 Received: by 10.223.113.199 with SMTP id b7mr15642faq.83.1233762335463; Wed, 04 Feb 2009 07:45:35 -0800 (PST) In-Reply-To: <2F1868733128B647A5383526F5DF600401A91E25@VNAMBV03.vistcorp.ad.visteon.com> References: <200902040858.23559.alan.mckinnon@gmail.com> <20090204130332.GB22980@revolver> <1233753351.4596.18.camel@silversword> <20090204133126.GC22980@revolver> <1233755775.4596.33.camel@silversword> <2F1868733128B647A5383526F5DF600401A91E25@VNAMBV03.vistcorp.ad.visteon.com> Date: Wed, 4 Feb 2009 16:45:34 +0100 Message-ID: <71ca7fa0902040745i282fd196gcd4a2dda6d82e352@mail.gmail.com> Subject: Re: [gentoo-user] Re: Gentoo's advantage: "optimized for yoursystem" -- huh? From: Yannick Mortier To: gentoo-user@lists.gentoo.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Archives-Salt: 53a26278-372a-4a7a-84d3-b49d9cba9227 X-Archives-Hash: c0afd620df5b67804a75bb968db81830 2009/2/4 Prado, Renato (R.P.) : >> My question can be put like this: Do binary distro's per package >> optimiziations override the benefit of having arch specific >> optimiziations that gentoo allows? > Thinking about that... I guess a could future for future portage > releases would be a USE flag the overrides the system's CFLAGS (besides > -march) to what the package maintainer recommends. This would be > interesting for processor-intensive stuff, like ffmpeg for example. This > would also allow users to try some more dangerous flags only for > packages were they are known to be safe. > > I have -march=amdfam10 (Phenom) and I once watched the compilation of ffmpeg and it said something like "CPU family amdfam10 unknown" and it changed some of the CFLAGS (I can't remember which exactly) so I guess something like this is already somewhere under the hood. But I agree that a USE-Flag to decide over this behaviour would be great. -- Currently developing a browsergame... http://www.p-game.de Trade - Expand - Fight Follow me at twitter! http://twitter.com/moortier