From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ns3.lanforge.com (mail.candelatech.com [208.74.158.172]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by huchra.bufferbloat.net (Postfix) with ESMTPS id 6038121F0BA for ; Tue, 14 May 2013 09:28:55 -0700 (PDT) Received: from [192.168.100.147] (firewall.candelatech.com [70.89.124.249]) (authenticated bits=0) by ns3.lanforge.com (8.14.2/8.14.2) with ESMTP id r4EGSsDL030408 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Tue, 14 May 2013 09:28:54 -0700 Message-ID: <51926646.3010505@candelatech.com> Date: Tue, 14 May 2013 09:28:54 -0700 From: Isaac Konikoff User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130329 Thunderbird/17.0.5 MIME-Version: 1.0 To: bloat@lists.bufferbloat.net References: <20130514154838.2d9622b7@redhat.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Bloat] Network test tools for many parallel/concurrent connections? X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 14 May 2013 16:28:55 -0000 Candela makes a Linux based network traffic test tool called LANforge-FIRE. It can generate in excess of 50,000 TCP connections among other features. It is a proprietary tool, but we'll send out free licenses to students and those working on non-commercial open source projects. Thanks, Isaac On 05/14/2013 07:46 AM, Dave Taht wrote: > I still use tcptrace and xplot.org for deep dives. > > I just fired off 2048 netperfs to localhost on my laptop. It started > bogging down at 1000 but made it to the end, all connections chugging away. > > Probably a better tool would be the apache benchmark `ab` or something > else that is built to stress out web sites. > > On May 14, 2013 10:15 AM, "Jesper Dangaard Brouer" > wrote: > > > (I'm testing fq_codel and codel) > > I need a test tool that can start many TCP streams (>1024). > During/after the testrun I want to know if the connections got a fair > share of the bandwidth. > > Can anyone recomment tools for this? > > After the test I would also like to, "deep-dive" analyse one of the TCP > streams to see how the congestion window, outstanding-win/data is > behaving. Back in 2005 I used-to-use a tool called > "tcptrace" (http://www.tcptrace.org). > Have any better tools surfaced? > > -- > Best regards, > Jesper Dangaard Brouer > MSc.CS, Sr. Network Kernel Developer at Red Hat > Author of http://www.iptv-analyzer.org > LinkedIn: http://www.linkedin.com/in/brouer > _______________________________________________ > Bloat mailing list > Bloat@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/bloat > > > > _______________________________________________ > Bloat mailing list > Bloat@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/bloat > -- Isaac Konikoff Candela Technologies konikofi@candelatech.com Office: +1 360 380 1618 Cell: +1 360 389 2453 Fax: +1 360 380 1431