From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lists.gentoo.org ([140.105.134.102] helo=robin.gentoo.org) by nuthatch.gentoo.org with esmtp (Exim 4.43) id 1DzGdP-00006C-1Y for garchives@archives.gentoo.org; Sun, 31 Jul 2005 16:25:55 +0000 Received: from robin.gentoo.org (localhost [127.0.0.1]) by robin.gentoo.org (8.13.4/8.13.4) with SMTP id j6VGOXNc025087; Sun, 31 Jul 2005 16:24:33 GMT Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) by robin.gentoo.org (8.13.4/8.13.4) with ESMTP id j6VGOXm7012612 for ; Sun, 31 Jul 2005 16:24:33 GMT Received: from list by ciao.gmane.org with local (Exim 4.43) id 1DzGbc-00087N-Cp for gentoo-amd64@lists.gentoo.org; Sun, 31 Jul 2005 18:24:04 +0200 Received: from ip68-230-97-182.ph.ph.cox.net ([68.230.97.182]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 31 Jul 2005 18:24:04 +0200 Received: from 1i5t5.duncan by ip68-230-97-182.ph.ph.cox.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 31 Jul 2005 18:24:04 +0200 X-Injected-Via-Gmane: http://gmane.org/ To: gentoo-amd64@lists.gentoo.org From: Duncan <1i5t5.duncan@cox.net> Subject: [gentoo-amd64] Re: Re: x86_64 optimization patches for glibc. Date: Sun, 31 Jul 2005 09:23:27 -0700 Organization: Sometimes Message-ID: References: <42E258A7.5080501@telia.com> <1122322081.12747.5.camel@cloud.outersquare.org> <42E55ADB.8030201@telia.com> <20050731085600.65fc8657.brihall@pcisys.net> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-amd64@gentoo.org Reply-to: gentoo-amd64@lists.gentoo.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Complaints-To: usenet@sea.gmane.org X-Gmane-NNTP-Posting-Host: ip68-230-97-182.ph.ph.cox.net User-Agent: Pan/0.14.2.91 (As She Crawled Across the Table) Sender: news X-Archives-Salt: 6da8e1c1-d892-4302-92d3-abb0e4b818a2 X-Archives-Hash: a27fa6a1e4fff7f5c8a2905e509cca05 Brian Hall posted <20050731085600.65fc8657.brihall@pcisys.net>, excerpted below, on Sun, 31 Jul 2005 08:56:00 -0600: > Perhaps a USE flag could be created to enable the glibc patches, then a > emerge --newuse could recompile glibc and the problem apps (or > everything); maybe a mini-howto document would also be helpful. > > I would certainly like an easy way to enable any "free" performance > boost I can get! Something like USE=dangerous-amd64-hack? (Seriously, there at least used to be a local use flag USE=frickin-big-security-hole, or some such, on some app I can't remember at the moment. Turns out a teacher was using that app in his class as a an example or something, so the dev left the ability to create it there, but with a USE flag nobody in their right mind would normally enable. I wish I could remember what it was, but grepping use.local.desc for anything that might be related doesn't seem to bring it up. Perhaps the app, or anyway the USE flag, has now been removed from portage?) The use.local.desc description could point to the bug, which is IIRC what the one above did, for those wanting more information about just why such a USE flag exists, and just why someone might be persuaded to enable it. -- Duncan - List replies preferred. No HTML msgs. "Every nonfree program has a lord, a master -- and if you use the program, he is your master." Richard Stallman in http://www.linuxdevcenter.com/pub/a/linux/2004/12/22/rms_interview.html -- gentoo-amd64@gentoo.org mailing list