From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail7c25.carrierzone.com (mail462c25.carrierzone.com [209.235.146.232]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id A58DB3CB48 for ; Fri, 22 Jan 2021 18:37:24 -0500 (EST) X-POP-User: hmurray@megapathdsl.net Feedback-ID: hmurray@megapat Received: from ip-64-139-1-69.sjc.megapath.net (ip-64-139-1-69.sjc.megapath.net [64.139.1.69]) by mail7c25.carrierzone.com (8.14.9/8.13.1) with ESMTP id 10MNbDv8007796 for ; Fri, 22 Jan 2021 23:37:20 +0000 Received: from shuksan (localhost [127.0.0.1]) by ip-64-139-1-69.sjc.megapath.net (Postfix) with ESMTP id 1B911406061; Fri, 22 Jan 2021 15:37:10 -0800 (PST) X-Mailer: exmh version 2.7.2 01/07/2005 with nmh-1.3 To: bloat@lists.bufferbloat.net cc: Hal Murray From: Hal Murray Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Fri, 22 Jan 2021 15:37:10 -0800 Message-Id: <20210122233710.1B911406061@ip-64-139-1-69.sjc.megapath.net> X-CSC: 0 X-CHA: v=2.3 cv=BpfjPrf5 c=1 sm=1 tr=0 a=OWgXOY7Tc8w5m7k7nGX6Zw==:117 a=OWgXOY7Tc8w5m7k7nGX6Zw==:17 a=kj9zAlcOel0A:10 a=EmqxpYm9HcoA:10 a=vnREMb7VAAAA:8 a=_GnSxkx0i2d_gy67gY0A:9 a=CjuIK1q_8ugA:10 a=voZrjb6_8qcA:10 X-CTCH-RefID: str=0001.0A742F27.600B61B3.0037, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0 X-CTCH-VOD: Unknown X-CTCH-Spam: Unknown X-CTCH-Score: 0.000 X-CTCH-Rules: X-CTCH-Flags: 0 X-CTCH-ScoreCust: 0.000 X-Origin-Country: US Subject: [Bloat] Measuring CoDel X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Jan 2021 23:37:24 -0000 Toke said: > Yeah, the overhead of CoDel itself (and even FQ-CoDel) is basically nil (as > in, we have not been able to measure it), when otherwise doing forwarding > using the regular Linux stack. I may be able to help with that. Are you familiar with Dick Sites' KUtrace? Stanford Seminar - KUtrace 2020 https://www.youtube.com/watch?v=2HE7tSZGna0 The catch is that I've never used CoDel so somebody will have to teach me how to setup a test environment, and then show me the chunks in the kernel you want to measure. -- These are my opinions. I hate spam.