From owner-freebsd-questions@freebsd.org Fri Nov 18 09:38:46 2016 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 23751C46FAA for ; Fri, 18 Nov 2016 09:38:46 +0000 (UTC) (envelope-from kuku@kukulies.org) Received: from kukulies.org (mail.kukulies.org [78.47.239.221]) by mx1.freebsd.org (Postfix) with ESMTP id E318524F for ; Fri, 18 Nov 2016 09:38:45 +0000 (UTC) (envelope-from kuku@kukulies.org) Received: from localhost (localhost [127.0.0.1]) by kukulies.org (Postfix) with ESMTP id CBA9D4DA409 for ; Fri, 18 Nov 2016 10:38:43 +0100 (CET) Received: from kukulies.org ([127.0.0.1]) by localhost (kukulies.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id en13p0bGcymB for ; Fri, 18 Nov 2016 10:38:42 +0100 (CET) Received: from [172.27.4.215] (unknown [87.79.34.228]) by kukulies.org (Postfix) with ESMTPSA id 9BF214DA408 for ; Fri, 18 Nov 2016 10:38:42 +0100 (CET) To: "freebsd-questions@freebsd.org" From: "Christoph P.U. Kukulies" Subject: how long does a make buildworld normally take? Message-ID: Date: Fri, 18 Nov 2016 10:38:45 +0100 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 18 Nov 2016 09:38:46 -0000 how long does a make buildworld normally take? Has make buildworld time constant over the years? In 1995 "make world" on a Pentium Pro about 18 hours On my 4GB, CPU: AMD Athlon(tm) 64 X2 Dual Core Processor 3800+ (1995.64-MHz 686-class CPU) make buildworld took about 18 hours. Well that CPU isn't the latest either (10 Years or so) Reminds me of a joke, saying that all bycycles weight the same (10lbs). Light carbon fiber bike 3lbs. need 7 lbs. lock Heavy steel bike 7lbs. need 3 lbs. lock As hardware grew faster over the years, software exploded the same way and eats up resources. Anyway, how could one speed up the make buildworld process? Parallelizing (make -j 8 or sth.)? I will try next on my 16GB notebook with i7-4720 (8core) CPU 1TB SSD and see what it gives. -- Christoph