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 1PiTV6-0005Fg-U9 for garchives@archives.gentoo.org; Thu, 27 Jan 2011 15:11:09 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id BFB86E09D6; Thu, 27 Jan 2011 15:09:42 +0000 (UTC) Received: from smtp.gentoo.org (smtp.gentoo.org [140.211.166.183]) by pigeon.gentoo.org (Postfix) with ESMTP id 8EE5AE09D6 for ; Thu, 27 Jan 2011 15:09:42 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp.gentoo.org (Postfix) with ESMTP id 0FAD71B423F for ; Thu, 27 Jan 2011 15:09:42 +0000 (UTC) X-Virus-Scanned: by amavisd-new using ClamAV at gentoo.org X-Spam-Score: -2.875 X-Spam-Level: X-Spam-Status: No, score=-2.875 required=5.5 tests=[AWL=-0.276, BAYES_00=-2.599] 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 FgPHOxUHVbNV for ; Thu, 27 Jan 2011 15:09:35 +0000 (UTC) Received: from lo.gmane.org (lo.gmane.org [80.91.229.12]) by smtp.gentoo.org (Postfix) with ESMTP id 9E6451B4268 for ; Thu, 27 Jan 2011 15:09:35 +0000 (UTC) Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1PiTTW-0001UX-4E for gentoo-user@gentoo.org; Thu, 27 Jan 2011 16:09:30 +0100 Received: from athedsl-377134.home.otenet.gr ([79.131.25.44]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 27 Jan 2011 16:09:30 +0100 Received: from realnc by athedsl-377134.home.otenet.gr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 27 Jan 2011 16:09:30 +0100 X-Injected-Via-Gmane: http://gmane.org/ To: gentoo-user@lists.gentoo.org From: Nikos Chantziaras Subject: [gentoo-user] Re: Simultaneously emerging multiple packages with same dependencies Date: Thu, 27 Jan 2011 17:09:27 +0200 Organization: Lucas Barks Message-ID: References: <20110127100158.692bd251@digimed.co.uk> <4D416F12.8000202@gmail.com> <20110127141625.09298a30@zaphod.digimed.co.uk> <20110127145339.30a0b4f7@digimed.co.uk> 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@dough.gmane.org X-Gmane-NNTP-Posting-Host: athedsl-377134.home.otenet.gr User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.13) Gecko/20110126 Thunderbird/3.1.7 In-Reply-To: <20110127145339.30a0b4f7@digimed.co.uk> X-Archives-Salt: X-Archives-Hash: 43991cf513600bbf05b8cff8e9f5103c On 01/27/2011 04:53 PM, Neil Bothwick wrote: > On Thu, 27 Jan 2011 16:30:30 +0200, Nikos Chantziaras wrote: > >>> Using --jobs does a better job of making use of your CPU because one >>> package can use it fully for compiling while another is configuring. >> >> And what about the last package? The time you gained for faster >> configure and install (which don't take too much time anyway) is wasted >> again on the last package. > > So on a 20 package world update, only 19 are faster while the 20th runs > at the same speed? Where's the loss there? Even if the last were slower, > it would be worth it. Given the amount of time unpack/configure/install of most packages needs (very short), my observation is that it would not be worth it.