From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f177.google.com (mail-pd0-f177.google.com [209.85.192.177]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id 7B98821F1CF for ; Tue, 14 May 2013 08:47:30 -0700 (PDT) Received: by mail-pd0-f177.google.com with SMTP id g10so532988pdj.8 for ; Tue, 14 May 2013 08:47:30 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=x-received:date:from:to:cc:subject:message-id:in-reply-to :references:x-mailer:mime-version:content-type :content-transfer-encoding:x-gm-message-state; bh=nwsfPfjdxZHNcO+xaX3cXVIBMkCaEv2VevrshRxqEus=; b=O0PKAP4crpYOf5nCvmZmPmaDy7c5u2QvJqSi8iE7JSX8dGx50dHVIEmInDV1o7B8y4 dalam/5jReBZX/epC4o8U7Dg/rIs2Ncrlv5pOmvMqTxDKZ/Bnk5WDfwlEI4k1ahKQtUs NNnQkK6+TgjfwkkkNtIn5/zXSKvWOgsRlqpAVR58SZk2duEE26RdlxInqaibDPR6A0bi aVXtIYmgx2hNvmlWdFOafFRK5iFcMZlyBcAiRgeu/LCZGxBZMZ3jfajgNdmRI2Jkw7/f l7Mqvi1tZ6PVYys1MJk+8iZOxijVRKOgFbgNDkAJxa/TqV1YHzsNiEW7argVt+c7mImP V5jg== X-Received: by 10.66.74.170 with SMTP id u10mr35571496pav.202.1368546450100; Tue, 14 May 2013 08:47:30 -0700 (PDT) Received: from nehalam.linuxnetplumber.net (static-50-53-71-109.bvtn.or.frontiernet.net. [50.53.71.109]) by mx.google.com with ESMTPSA id uq10sm18735730pbc.5.2013.05.14.08.47.28 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Tue, 14 May 2013 08:47:29 -0700 (PDT) Date: Tue, 14 May 2013 08:47:26 -0700 From: Stephen Hemminger To: Jesper Dangaard Brouer Message-ID: <20130514084726.0fcd715a@nehalam.linuxnetplumber.net> In-Reply-To: <20130514154838.2d9622b7@redhat.com> References: <20130514154838.2d9622b7@redhat.com> X-Mailer: Claws Mail 3.8.1 (GTK+ 2.24.10; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Gm-Message-State: ALoCoQmtwCwVYJRgRyOWnP/9LBqR/IlV6+A/alipqWAmAKLSlsJyksNgCj/d0PMoJ2qHiVUURZ85 Cc: "codel@lists.bufferbloat.net" , "bloat@lists.bufferbloat.net" 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 15:47:30 -0000 On Tue, 14 May 2013 15:48:38 +0200 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? > You may want to look at some of the "realistic" load tools since in real life not all flows are 100% of bandwidth and long lived.