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 1RcXYF-000629-LT for garchives@archives.gentoo.org; Mon, 19 Dec 2011 07:22:23 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id BB63121C08D; Mon, 19 Dec 2011 07:22:14 +0000 (UTC) Received: from mail-gy0-f181.google.com (mail-gy0-f181.google.com [209.85.160.181]) by pigeon.gentoo.org (Postfix) with ESMTP id 55C7821C082 for ; Mon, 19 Dec 2011 07:21:14 +0000 (UTC) Received: by ghrr19 with SMTP id r19so10357ghr.40 for ; Sun, 18 Dec 2011 23:21:13 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:content-type:content-transfer-encoding; bh=5XtRuoTs2adaykK9NVKQN042QrO74i265j6GVGm4+RY=; b=qMflFeISECGDabNStKM+ybbYgM6FBCytQbDxvrSuHxNV93lVxHXEgOT/K3gZ2Y555u Grvrj/LKJLxRpPX8pQobvs6XloFBU2//V64yJQfYDuwLaO9uTpwULW8CxxUASlesTePW GYOvFLaonGVpLG2ToKX4+y9OfUli+AaLr3ir0= Received: by 10.236.161.197 with SMTP id w45mr25109388yhk.96.1324279273689; Sun, 18 Dec 2011 23:21:13 -0800 (PST) Received: from [192.168.2.5] (adsl-65-0-122-130.jan.bellsouth.net. [65.0.122.130]) by mx.google.com with ESMTPS id o50sm28414698yhl.9.2011.12.18.23.21.10 (version=SSLv3 cipher=OTHER); Sun, 18 Dec 2011 23:21:12 -0800 (PST) Message-ID: <4EEEE5E4.4030808@gmail.com> Date: Mon, 19 Dec 2011 01:21:08 -0600 From: Dale User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:7.0.1) Gecko/20111022 Firefox/7.0.1 SeaMonkey/2.4.1 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 To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] Re: A tale of computing thud and blunder 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> In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Archives-Salt: 0720ebc7-b019-4482-a195-cbda15580ab3 X-Archives-Hash: 2adc7fadaebe17a309c748bf63a3cb98 Nikos Chantziaras wrote: > 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. > > Sounds like it may work on both then. That's sort of what I was thinking but wasn't sure. >> 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 :-) > > From what I read it makes some processes run in parallel instead of serial or one at a time. Some think it is meaningless but some think it is awesome. I don't know what to think since I have not used it or compared the differences. >> 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. > That would be another good thing to know. I don't file many bug reports but if something breaks and it needs one, I do file them. This may be like good wine. It may need to rest a while longer unless someone else knows it is supported and works well. I got a good install and I don't want to break it. Dale :-) :-) -- I am only responsible for what I said ... Not for what you understood or how you interpreted my words! Miss the compile output? Hint: EMERGE_DEFAULT_OPTS="--quiet-build=n"