From owner-freebsd-current Mon Jan 24 8:36:38 2000 Delivered-To: freebsd-current@freebsd.org Received: from trinity.skynet.be (trinity.skynet.be [195.238.2.38]) by hub.freebsd.org (Postfix) with ESMTP id AA1C715B14; Mon, 24 Jan 2000 08:36:19 -0800 (PST) (envelope-from blk@skynet.be) Received: from [195.238.1.121] (brad.techos.skynet.be [195.238.1.121]) by trinity.skynet.be (Postfix) with ESMTP id 03CA51254E; Mon, 24 Jan 2000 17:35:28 +0100 (MET) Mime-Version: 1.0 X-Sender: blk@foxbert.skynet.be Message-Id: In-Reply-To: References: Date: Mon, 24 Jan 2000 17:01:55 +0100 To: "Mr. K." From: Brad Knowles Subject: Re: Please help spread the CVSup mirror load more evenly Cc: "Rodney W. Grimes" , Amancio Hasty , obrien@FreeBSD.ORG, John Polstra , current@FreeBSD.ORG Content-Type: text/plain; charset="us-ascii" ; format="flowed" Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG At 10:23 AM -0500 2000/1/24, Mr. K. wrote: > Why don't we use the download accelerator > (http://www.lidan.com/) methodology and make simultaneous connections to > the top 4 sites as discovered by ping? :) As mentioned before, not all sites allow ICMP packets through their networks. In addition, ping only deals with the network latency issue, and not very well at that -- it's only an instantaneous measure. Since cvsup sessions tend to last relatively long periods of time, even if you were to look at just latency, you would want something that would look at minimum, maximum, standard deviation, and median latency over similar relatively long periods of time. Of course, there are also host loading and bandwidth issues, network congestion & drops problems, network route flapping issues, and a whole host of other things that you'd also want to look at. As I said before, I don't think any one simple solution to this problem will do the job. -- These are my opinions and should not be taken as official Skynet policy _________________________________________________________________________ |o| Brad Knowles, Belgacom Skynet NV/SA |o| |o| Systems Architect, Mail/News/FTP/Proxy Admin Rue Col. Bourg, 124 |o| |o| Phone/Fax: +32-2-706.13.11/726.93.11 B-1140 Brussels |o| |o| http://www.skynet.be Belgium |o| \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/ Unix is like a wigwam -- no Gates, no Windows, and an Apache inside. Unix is very user-friendly. It's just picky who its friends are. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message