From owner-freebsd-net Wed Oct 9 18:22:20 2002 Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3BCE737B401 for ; Wed, 9 Oct 2002 18:22:19 -0700 (PDT) Received: from khavrinen.lcs.mit.edu (khavrinen.lcs.mit.edu [18.24.4.193]) by mx1.FreeBSD.org (Postfix) with ESMTP id 99E0543E3B for ; Wed, 9 Oct 2002 18:22:18 -0700 (PDT) (envelope-from wollman@khavrinen.lcs.mit.edu) Received: from khavrinen.lcs.mit.edu (localhost [IPv6:::1]) by khavrinen.lcs.mit.edu (8.12.3/8.12.5) with ESMTP id g9A1MHgQ059095 (version=TLSv1/SSLv3 cipher=EDH-RSA-DES-CBC3-SHA bits=168 verify=OK); Wed, 9 Oct 2002 21:22:18 -0400 (EDT) (envelope-from wollman@khavrinen.lcs.mit.edu) Received: (from wollman@localhost) by khavrinen.lcs.mit.edu (8.12.3/8.12.5/Submit) id g9A1MHhW059092; Wed, 9 Oct 2002 21:22:17 -0400 (EDT) (envelope-from wollman) Date: Wed, 9 Oct 2002 21:22:17 -0400 (EDT) From: Garrett Wollman Message-Id: <200210100122.g9A1MHhW059092@khavrinen.lcs.mit.edu> To: Lars Eggert Cc: net Subject: in-kernel traffic generator? In-Reply-To: <3DA4D571.2080207@isi.edu> References: <3DA4D571.2080207@isi.edu> Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org < said: > anyone know of an in-kernel traffic generator similar to UDPgen > (http://www.fokus.gmd.de/research/cc/glone/employees/sebastian.zander/private/udpgen/) > for Linux? Userland traffic generators have high overheads with small > packets at Gigabit speeds. I wrote one a long time ago for John Wroclawski (back when 100 Mbit/s was still considered a high speed). I don't think I have the source any more, and even if I did it would require a lot of hacking to make it work (it was fairly intimate with the IP stack in 2.2.5). -GAWollman To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message