From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id 95BC1198005 for ; Fri, 15 Mar 2013 05:48:10 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 1BBA3E079A; Fri, 15 Mar 2013 05:47:52 +0000 (UTC) Received: from mail-ia0-f170.google.com (mail-ia0-f170.google.com [209.85.210.170]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id AD6A5E0675 for ; Fri, 15 Mar 2013 05:47:50 +0000 (UTC) Received: by mail-ia0-f170.google.com with SMTP id h8so2882625iaa.1 for ; Thu, 14 Mar 2013 22:47:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:x-received:in-reply-to:references:date:message-id :subject:from:to:content-type; bh=at/TVcUf4e+nPO+9GgIRbMGksmQyAHqNzc4MCtQJJh0=; b=V0ZlmtC2vKu64mRT4R/Ii5ZD0RyzAgxClRuOhzPb4IuQjUUGByl9nTJkIM1DqID2mP AHaDF+CAvEzn4ndItJUGKGTRpTBW2yvrUHxiJGM8N06O36qtmRoSAA/Kbz1OyrNxKY5k 7h2iuus7ogUEHsgK3OKovcfOvasKxcmAbFENTDWIvjXgPoYrI+RNVHXUSEDlu1nguyW/ hqNBm6jtt4iO5Nuu/Q3hitQsp9WluK2n1r1cEDSgopQr/jFT5/+BGT8bvSVNstVWne0p h+0Vtjan61FvWsxbBGFq9Z/HqCE9eKzMRD6BIsDQJu/v/vvr+nrEZmyR85h1CbEDOs92 XpLQ== 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 X-Received: by 10.50.173.105 with SMTP id bj9mr441002igc.44.1363326469911; Thu, 14 Mar 2013 22:47:49 -0700 (PDT) Received: by 10.50.100.1 with HTTP; Thu, 14 Mar 2013 22:47:49 -0700 (PDT) In-Reply-To: <20130314144349.3c89fb37@digimed.co.uk> References: <51418728.7020406@gmail.com> <514194E9.2090808@iinet.net.au> <5141D07C.3010709@gmail.com> <5141D361.4030502@gmail.com> <20130314144349.3c89fb37@digimed.co.uk> Date: Fri, 15 Mar 2013 13:47:49 +0800 Message-ID: Subject: Re: [gentoo-user] Gentoo speed comparison to other distros From: Mark David Dumlao To: gentoo-user@lists.gentoo.org Content-Type: text/plain; charset=ISO-8859-1 X-Archives-Salt: 021ae0b9-122d-4f4d-979d-c6db2594ae93 X-Archives-Hash: 852389e0265d989c61f4c2c8227bfff5 On Thu, Mar 14, 2013 at 10:43 PM, Neil Bothwick wrote: > On Thu, 14 Mar 2013 21:40:49 +0800, Mark David Dumlao wrote: > >> > Or, try remove LDAP, NIS and PAM support for auth from a RHEL machine >> > to test if it works without those things in place. >> > RHEL? Impossible. >> > Gentoo? Trivially easy. > >> "Trivially easy", of course, means an emerge -euDNtv world && emerge >> -ctv && revdep-rebuild -i && revdep-rebuild ... ehehehe > > There's no need to rebuild everything, and those other flags make no > sense when using -e. Generally you only need > > emerge -uaD --changed-use @world > I know that, in general principle. But it's a test environment. I'd assume stricter standards of "purity" there than elsewhere. simply going by changed-use can break some library dependencies. We need to use depclean to remove build deps junk after the emptytree, and we're revdep-rebuilding twice in case the depclean borked something. (To be really strict, revdep-rebuild should be repeated until it stops building things...) Heck in some setups empty-tree will simply fail thanks to circular deps of the global use flags and you'll need manual intervention to bootstrap a package with less USE...