From owner-freebsd-questions@FreeBSD.ORG Wed Nov 9 19:39:39 2005 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id CB34B16A420 for ; Wed, 9 Nov 2005 19:39:39 +0000 (GMT) (envelope-from cperciva@freebsd.org) Received: from pd5mo3so.prod.shaw.ca (shawidc-mo1.cg.shawcable.net [24.71.223.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4876743D46 for ; Wed, 9 Nov 2005 19:39:38 +0000 (GMT) (envelope-from cperciva@freebsd.org) Received: from pd5mr4so.prod.shaw.ca (pd5mr4so-qfe3.prod.shaw.ca [10.0.141.168]) by l-daemon (Sun ONE Messaging Server 6.0 HotFix 1.01 (built Mar 15 2004)) with ESMTP id <0IPP00GXIDA1FI00@l-daemon> for freebsd-questions@freebsd.org; Wed, 09 Nov 2005 12:39:37 -0700 (MST) Received: from pn2ml4so.prod.shaw.ca ([10.0.121.148]) by pd5mr4so.prod.shaw.ca (Sun ONE Messaging Server 6.0 HotFix 1.01 (built Mar 15 2004)) with ESMTP id <0IPP00K4NDA1G1L0@pd5mr4so.prod.shaw.ca> for freebsd-questions@freebsd.org; Wed, 09 Nov 2005 12:39:37 -0700 (MST) Received: from [192.168.0.60] (S0106006067227a4a.vc.shawcable.net [24.87.209.6]) by l-daemon (iPlanet Messaging Server 5.2 HotFix 1.18 (built Jul 28 2003)) with ESMTP id <0IPP007LZDA02I@l-daemon> for freebsd-questions@freebsd.org; Wed, 09 Nov 2005 12:39:37 -0700 (MST) Date: Wed, 09 Nov 2005 11:39:36 -0800 From: Colin Percival In-reply-to: <200511091313.50741.kirk@strauser.com> To: Kirk Strauser Message-id: <43725078.6000303@freebsd.org> MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-1 Content-transfer-encoding: 7bit X-Accept-Language: en-us, en X-Enigmail-Version: 0.93.0.0 References: <200511091224.13143.kirk@strauser.com> <200511091044.04253.kstewart@owt.com> <200511091313.50741.kirk@strauser.com> User-Agent: Mozilla Thunderbird 1.0.7 (X11/20051001) Cc: freebsd-questions@freebsd.org Subject: Re: cvsup vs. portsnap (was Re: cvsup problem) X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Nov 2005 19:39:39 -0000 Kirk Strauser wrote: > On Wednesday 09 November 2005 12:44, Kent Stewart wrote: >>If you aren't going to rebuild everything, every time you cvsup, don't do >>it. > > Out of curiosity, are 10 small cvsup sessions worse than 1 session with 10 > times the changes? Yes. Each time you run CVSup, it transmits a list of all the files in the tree; if your ports tree is almost up-to-date already, then this "overhead" cost is in fact the largest contributor to the bandwidth used. This problem does not occur with portsnap to any significant extent; updating once an hour uses less than 1% extra bandwidth compared to updating every day. > Anyway, I've fallen in love with portsnap. Is there any reason in the world > why a normal user (eg one that doesn't need to fetch a version of ports > from a specific date or tag) shouldn't completely switch to portsnap today? The other common reason for being unable to use portsnap is if a user has made their own personal changes to a port (e.g., an added patch). Portsnap will remove such changes the next time the port is updated, while cvs will attempt to merge the modifications. Colin Percival