Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 15 Mar 2001 05:15:28 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 15 Mar 2001 05:15:18 -0500 Received: from shiva.jussieu.fr ([134.157.0.129]:2566 "EHLO shiva.jussieu.fr") by vger.kernel.org with ESMTP id ; Thu, 15 Mar 2001 05:15:12 -0500 Message-ID: <3AB08FAC.657784CA@qosmos.net> Date: Thu, 15 Mar 2001 10:47:24 +0100 From: Jerome Tollet Organization: Qosmos X-Mailer: Mozilla 4.76 [en] (X11; U; Linux 2.2.18 i686) X-Accept-Language: fr-FR, en MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: kernel 2.4.2 network performances Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hello, i have a problem with the network layer of linux kernel 2.4.2 I wrote a minimalist program which basically sends UDP datagrams over the network in an infinite loop. Under Linux 2.2.x, this program floods the network and my xosview prints that 12 MB/s are sent over my 100Mbit ethernet. Under Linux 2.4.2, this program can't flood the network because my xosview (the same ;-) ) tells me that 4.6MB/s are sent over my ethernet although my cpu is not overloaded. I think that Linux 2.4.2 limits the rate of packets sent over the network with some soft parameters. *Does anyone have any idea ? *Could someone explains me the new /proc/sys/net/core/{hot_list_length|no_cong|no_cong_thresh|mod_cong|lo_cong} parameters ? *Where could i see in the code this soft limits ? Thanks for your help. Please CC me your response while i didn't subscribed to the mailing list. ------------------------ Jerome Tollet jerome.tollet@qosmos.net www.qosmos.net ------------------------ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/