From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1RcX3c-00063G-Ox for garchives@archives.gentoo.org; Mon, 19 Dec 2011 06:50:45 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 1A22B21C3BC; Mon, 19 Dec 2011 06:50:29 +0000 (UTC) Received: from smtp.gentoo.org (smtp.gentoo.org [140.211.166.183]) by pigeon.gentoo.org (Postfix) with ESMTP id 7A51D21C023 for ; Mon, 19 Dec 2011 06:49:20 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp.gentoo.org (Postfix) with ESMTP id 08A231B4005 for ; Mon, 19 Dec 2011 06:49:20 +0000 (UTC) X-Virus-Scanned: by amavisd-new using ClamAV at gentoo.org X-Spam-Flag: NO X-Spam-Score: -3.931 X-Spam-Level: X-Spam-Status: No, score=-3.931 tagged_above=-999 required=5.5 tests=[AWL=0.469, BAYES_00=-1.9, FREEMAIL_FROM=0.001, RP_MATCHES_RCVD=-2.499, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001] autolearn=ham Received: from smtp.gentoo.org ([127.0.0.1]) by localhost (smtp.gentoo.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 1SMFQ1n9GL4n for ; Mon, 19 Dec 2011 06:49:11 +0000 (UTC) Received: from lo.gmane.org (lo.gmane.org [80.91.229.12]) by smtp.gentoo.org (Postfix) with ESMTP id 69D171B4008 for ; Mon, 19 Dec 2011 06:49:11 +0000 (UTC) Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1RcX20-0007YD-EZ for gentoo-user@gentoo.org; Mon, 19 Dec 2011 07:49:04 +0100 Received: from athedsl-387315.home.otenet.gr ([79.131.64.241]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 19 Dec 2011 07:49:04 +0100 Received: from realnc by athedsl-387315.home.otenet.gr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 19 Dec 2011 07:49:04 +0100 X-Injected-Via-Gmane: http://gmane.org/ To: gentoo-user@lists.gentoo.org From: Nikos Chantziaras Subject: [gentoo-user] Re: A tale of computing thud and blunder Date: Mon, 19 Dec 2011 08:49:09 +0200 Organization: Lucas Barks Message-ID: References: <20111217210709.GA1740@waltdnes.org> <20111218011054.GA2804@waltdnes.org> <20111218103449.GA21102@waltdnes.org> <20111219000522.GA22397@waltdnes.org> <4EEE82A5.2010909@gmail.com> <4EEED697.4030000@gmail.com> 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 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: athedsl-387315.home.otenet.gr User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:8.0) Gecko/20111117 Thunderbird/8.0 In-Reply-To: <4EEED697.4030000@gmail.com> X-Archives-Salt: c507510f-42d0-49af-8a1a-f2a136c48b8a X-Archives-Hash: be329c75dc646eee7065a1bdf7535f5b On 12/19/2011 08:15 AM, Dale wrote: > Pandu Poluan wrote: >> >> Kind of like what I always do when I switch from -march=nocona to >> -march=native. (Usually I use -march=nocona to ensure seamless VM >> migration on my XenServer-equipped boxen, but for some VMs, i.e., >> those requiring me to wring out every last drop of performance, I go >> native.) >> >> That said, if you want to experience fully the "GCC Graphite" >> optimizations, you'll also want to do emerge -ev ;-) > > > Is Graphite worthwhile on a desktop system or is it better suited for > servers or both? This isn't something that even remotely has anything to do with servers or desktops. Just like -O2 does not magically work better on servers. > I found this but still not sure what it is intended for: > > http://gcc.gnu.org/wiki/Graphite/4.5 It's an optimization that produces faster running executables. Are you interested in *how* it works :-) > Are there any reasons to leave this be for a while? You know, bugs or > packages that don't work with it? Just like with any other optimization switch, there can be bugs. If Gentoo says it doesn't support graphite, then I'd stay away from it because Gentoo devs might not listen to your bug reports if you use it. I don't know if they support it or not though.