Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 15 Feb 2003 18:15:55 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 15 Feb 2003 18:15:55 -0500 Received: from modemcable092.130-200-24.mtl.mc.videotron.ca ([24.200.130.92]:43591 "EHLO montezuma.mastecende.com") by vger.kernel.org with ESMTP id ; Sat, 15 Feb 2003 18:15:54 -0500 Date: Sat, 15 Feb 2003 18:24:22 -0500 (EST) From: Zwane Mwaikambo X-X-Sender: zwane@montezuma.mastecende.com To: Con Kolivas cc: linux kernel mailing list , Andrew Morton Subject: Re: tbench as a load - DDOS attack? In-Reply-To: <200302161007.25149.kernel@kolivas.org> Message-ID: References: <200302161007.25149.kernel@kolivas.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1084 Lines: 32 On Sun, 16 Feb 2003, Con Kolivas wrote: > > Zwane M suggested using tbench as a load to test one of his recent patches and > gave me the idea to try using tbench_load in contest. Here are the first set > of results I got while running tbench 4 continuously (uniprocessor machine): > > tbench_load: > Kernel [runs] Time CPU% > test2420 1 180 38.9 > test2561 1 970 7.7 > > This is a massive difference. Sure tbench was giving better numbers on 2.5.61 > but it caused a massive slowdown. I wondered whether this translates into > being more susceptible to ping floods or DDOS attacks? You should have seen > tbench 16 - 3546 seconds! > > comments? Are you running this via loopback? Can you send a profile during the 2.4.20 run? Thanks, Zwane -- function.linuxpower.ca - 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/