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 4.62) (envelope-from ) id 1HNv1F-0000zU-LE for garchives@archives.gentoo.org; Sun, 04 Mar 2007 18:01:14 +0000 Received: from robin.gentoo.org (localhost [127.0.0.1]) by robin.gentoo.org (8.14.0/8.14.0) with SMTP id l24HwkCo026340; Sun, 4 Mar 2007 17:58:46 GMT Received: from euclid.r.igoro.us (209-242-5-195.rev.dls.net [209.242.5.195]) by robin.gentoo.org (8.14.0/8.14.0) with ESMTP id l24HwjQN026314 for ; Sun, 4 Mar 2007 17:58:45 GMT Received: by euclid.r.igoro.us (Postfix, from userid 9000) id CD14B671E; Sun, 4 Mar 2007 11:58:44 -0600 (CST) Date: Sun, 4 Mar 2007 11:58:44 -0600 From: dustin@v.igoro.us To: gentoo-amd64@lists.gentoo.org Subject: Re: [gentoo-amd64] Re: System load during emerge Message-ID: <20070304175844.GA30254@v.igoro.us> References: <200703041151.37846.prh@gotadsl.co.uk> <200703041735.16861.prh@gotadsl.co.uk> 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=us-ascii Content-Disposition: inline In-Reply-To: <200703041735.16861.prh@gotadsl.co.uk> X-PGP-Key: http://people.cs.uchicago.edu/~dustin/pubkey.txt User-Agent: mutt-ng/devel-r804 (Linux) X-Archives-Salt: 95ed3cb0-ba81-4573-a665-821c70bbf92d X-Archives-Hash: ff207280f6479d0211053b56edda947d On Sun, Mar 04, 2007 at 05:35:16PM +0000, Peter Humphrey wrote: > As I said, I was watching firefox being compiled. All the preliminary stages > had been completed by then. All the source code should have been in memory, > but I can't say the same for any other libraries. On the other hand, just > how much time is needed to load all the development libraries needed for > this compilation? Not necessarily - gcc pulls in quite a range of system headers, which may be cached by the kernel less aggressively than the other stuff you're keeping in RAM. I'd recommend running iostat (in the sysstat ebuild) to see at least what kind of IO is going on here. You may also want to experiment with remounting e.g., /usr/include on a tmpfs. Dustin -- gentoo-amd64@gentoo.org mailing list