From owner-freebsd-questions Sun Aug 20 08:04:02 1995 Return-Path: questions-owner Received: (from majordom@localhost) by freefall.FreeBSD.org (8.6.11/8.6.6) id IAA02626 for questions-outgoing; Sun, 20 Aug 1995 08:04:02 -0700 Received: from genesis.atrad.adelaide.edu.au (genesis.atrad.adelaide.edu.au [129.127.96.120]) by freefall.FreeBSD.org (8.6.11/8.6.6) with ESMTP id IAA02614 for ; Sun, 20 Aug 1995 08:03:55 -0700 Received: from msmith@localhost by genesis.atrad.adelaide.edu.au (8.6.9/8.6.9) id BAA20953; Mon, 21 Aug 1995 01:08:44 +0930 From: Michael Smith Message-Id: <199508201538.BAA20953@genesis.atrad.adelaide.edu.au> Subject: Re: Monitoring system performance To: fdc@cliwe.ping.de (Frank D. Cringle) Date: Mon, 21 Aug 1995 01:08:43 +0930 (CST) Cc: questions@freebsd.org In-Reply-To: <9508201419.AA00108@cliwe.ping.de> from "Frank D. Cringle" at Aug 20, 95 04:19:55 pm Content-Type: text Content-Length: 1253 Sender: questions-owner@freebsd.org Precedence: bulk Frank D. Cringle stands accused of saying: > The goal up to here is to provide raw, unadulterated numbers that can be > analysed offline, e.g. using perl and gnuplot. Those plots should provide a > better basis for deciding whether to buy more memory or a higher bandwidth > network connection or whatever. Just on the net-connection side of things; in conjunction with a local ISP I wrote a simple network-traffic monitoring tool for their gateway machine that tracks who's sending how much where to what services. It requires bpf on the gateway machine, and the postprocessing is crude because it was never finished, but it did produce some enlightening results, and is in fact (amazingly) still in use. If anyone is interested, drop me a mail and ask for 'cantipole' and I'll toss you a copy to tinker with. > Frank Cringle | fdc@cliwe.ping.de -- ]] Mike Smith, Software Engineer msmith@atrad.adelaide.edu.au [[ ]] Genesis Software genesis@atrad.adelaide.edu.au [[ ]] High-speed data acquisition and [[ ]] realtime instrument control (ph/fax) +61-8-267-3039 [[ ]] My car has "demand start" -Terry Lambert UNIX: live FreeBSD or die! [[