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 1PiTcy-00069n-K4 for garchives@archives.gentoo.org; Thu, 27 Jan 2011 15:19:16 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id EE6BEE0B24; Thu, 27 Jan 2011 15:17:16 +0000 (UTC) Received: from mail-wy0-f181.google.com (mail-wy0-f181.google.com [74.125.82.181]) by pigeon.gentoo.org (Postfix) with ESMTP id A162BE0B24 for ; Thu, 27 Jan 2011 15:17:16 +0000 (UTC) Received: by wyf22 with SMTP id 22so2844001wyf.40 for ; Thu, 27 Jan 2011 07:17:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:from:to:subject:date:user-agent:references :in-reply-to:mime-version:message-id:content-type :content-transfer-encoding; bh=DpDqvibsnDwTahcJqMVBDS8OsHWrdbyX65kub7nPRJ8=; b=KqeoG8Zhq7a4VeQ3V79IH5IJ/39Q0JFdMwQx9pt0CwYvLnHBRw7RDgbRN5t3wHiROM JnrdkFtKZ3/tTgG+lj9aF4tMeoTHpjsdwguTpXt+MjLQl0N0+jZ6DOjgO+EsUmiBqhW5 AXDsWJbclbI88apnXN/hL1OMxQOkxYV9fz3Zs= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:subject:date:user-agent:references:in-reply-to:mime-version :message-id:content-type:content-transfer-encoding; b=JsKEPh0lYr/QLOavUY14HZMNhdksuCG9RMm38nkHL4Nr4v4t63MbojYJ4PzjF1OpxN DfY9cy1XRwGsnss7XWy4DSgGtrOTOhSp5VrEys41jHgE0vej88/NUr8zU+LH/FMd8L32 f/NiSxQvFEWlq+juwhpLOHrrRIzyz+frkZ6L4= Received: by 10.227.162.197 with SMTP id w5mr1181341wbx.169.1296141435853; Thu, 27 Jan 2011 07:17:15 -0800 (PST) Received: from nazgul.localnet (dustpuppy.is.co.za [196.14.169.11]) by mx.google.com with ESMTPS id a50sm6900588wer.18.2011.01.27.07.17.14 (version=TLSv1/SSLv3 cipher=RC4-MD5); Thu, 27 Jan 2011 07:17:14 -0800 (PST) From: Alan McKinnon To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] Re: Simultaneously emerging multiple packages with same dependencies Date: Thu, 27 Jan 2011 17:15:36 +0200 User-Agent: KMail/1.13.5 (Linux/2.6.37-ck; KDE/4.5.5; x86_64; ; ) References: <20110127145339.30a0b4f7@digimed.co.uk> In-Reply-To: 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 Message-Id: <201101271715.37028.alan.mckinnon@gmail.com> Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Archives-Salt: X-Archives-Hash: 331d454f4d5fd46ef7fa6c95cfdfcee1 Apparently, though unproven, at 17:09 on Thursday 27 January 2011, Nikos Chantziaras did opine thusly: > 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. KDE. unpack/configure/install takes up a significant amount of time for KDE -- alan dot mckinnon at gmail dot com