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 1McOMp-0004MB-LC for garchives@archives.gentoo.org; Sat, 15 Aug 2009 18:52:40 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 15811E03CE; Sat, 15 Aug 2009 18:52:38 +0000 (UTC) Received: from smtp.gentoo.org (smtp.gentoo.org [140.211.166.183]) by pigeon.gentoo.org (Postfix) with ESMTP id E6160E03CE for ; Sat, 15 Aug 2009 18:52:37 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp.gentoo.org (Postfix) with ESMTP id 9B7496615F for ; Sat, 15 Aug 2009 18:52:37 +0000 (UTC) X-Virus-Scanned: amavisd-new at gentoo.org X-Spam-Score: -3.564 X-Spam-Level: X-Spam-Status: No, score=-3.564 required=5.5 tests=[AWL=0.035, BAYES_00=-2.599, RCVD_IN_DNSWL_LOW=-1] 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 F920qOdRA8JO for ; Sat, 15 Aug 2009 18:52:30 +0000 (UTC) Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.gentoo.org (Postfix) with ESMTP id AADBB6430E for ; Sat, 15 Aug 2009 18:52:29 +0000 (UTC) Received: from list by ciao.gmane.org with local (Exim 4.43) id 1McOMa-0004SC-9a for gentoo-user@gentoo.org; Sat, 15 Aug 2009 18:52:24 +0000 Received: from athedsl-378031.home.otenet.gr ([79.131.28.173]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 15 Aug 2009 18:52:24 +0000 Received: from realnc by athedsl-378031.home.otenet.gr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 15 Aug 2009 18:52:24 +0000 X-Injected-Via-Gmane: http://gmane.org/ To: gentoo-user@lists.gentoo.org From: Nikos Chantziaras Subject: [gentoo-user] Re: Gcc 4.3.4 ---> 4.4.1 Date: Sat, 15 Aug 2009 21:52:15 +0300 Organization: Lucas Barks Message-ID: References: <20090814231756.GA9536@crowfix.com> <20090815003356.GA21363@crowfix.com> <4A86EB5C.9090103@gmail.com> <4A86FFF9.5090001@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=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: athedsl-378031.home.otenet.gr User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.1) Gecko/20090815 Thunderbird/3.0b3 In-Reply-To: <4A86FFF9.5090001@gmail.com> Sender: news X-Archives-Salt: 7b960277-d6e1-4032-8fbc-9f7e06ba61c2 X-Archives-Hash: b4e543c7759b8cfb1135c0778f784d4e On 08/15/2009 09:35 PM, 7v5w7go9ub0o wrote: > Nikos Chantziaras wrote: > >> >> AFAIK, the mudflap pointer checker is just a command line GCC switch. >> You need to enable it explicitly using "-fmudflap". >> > > ah.... o.k. I'm using the hardened overlay, and mudflap is a use flag > defaulting to enabled. I'll post that second comment over in hardened. I'm not on hardened, but mudflap is enabled by default here too. What I don't know is whether hardened has "-fmudflap" enabled by default. Perhaps someone who knows more about this feature can shed some light on how this works exactly. > I'd guess that most here would appreciate it if you post your > impressions about graphite. Overall system performance seems unchanged. I would need to actually benchmark it. I didn't do it yet, but you could emerge stuff like gzip, bzip2, oggdec (and other stuff that is easy to benchmark) with 4.4.1, run them on in-memory files (that means in /dev/shm) and time them (with the 'time' command) to see how big a gain there is. For example: time bzip2 --best /dev/shm/500gb-test-file