From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lf0-x235.google.com (mail-lf0-x235.google.com [IPv6:2a00:1450:4010:c07::235]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id E2CB13CB43 for ; Tue, 6 Mar 2018 06:46:44 -0500 (EST) Received: by mail-lf0-x235.google.com with SMTP id m69so28021546lfe.8 for ; Tue, 06 Mar 2018 03:46:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=fqe1jZAgdAlP1uNl2p824P5k8W0SZc8uKAiCOr7uZ2c=; b=IBeixyyeAa5WHaJXd4ELJMMeKSQsNAFJCXhq9LNeiKh63JvgvzvSFBMWxTLMQvCBdL oh8unhzx8ggFgw+S/NlRPY4DfXyLOPuoLmxZMPlZQxOLS7iQpE3uA6vope4PHLdPIDb+ 9IO7E2Sj4fD6Z6mRatzHa0l0mIYU5ZiKY8uVfjaaopCzUgGnJj7gUuB9lRxxL9Eny/0/ 5pJYSchDniDnwJvRa4wEdjtpP+fK+S7c3mZs3qYczFF9r6ARyKVEgY+mRgb3eA6cf3l4 7WUMLuZlykBqR/1PiFYSsqGV1DmvSK50dK65tbCVs1EE9pXTSErXX23Ig+3mTsjPbyNC 9ItA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=fqe1jZAgdAlP1uNl2p824P5k8W0SZc8uKAiCOr7uZ2c=; b=h+B6iFLRKDgUvQNSDCID4QfvaxzuhqlB3Z7aZWdpHdAEwpltuxRzIQbvvDA/XumFcI opZP901KT4GIlS1ju6J1/W9OCexzDi8Gs6rWQPyF++nWP2z5WAyYiUgIzFcXVYoWKUiT vZsVRU36YsJy4NYaypw4AhMVqvmcQW3muud3VJGVS/tCEqkPA0UXqkzcRk/X5XcoTPs4 q/x3WWMhnoTpOt0nqSCSnMT6NXLNNvHqDddLA6EXiM0fYxCjY425EbgtuVu3Zfdq/1Pg Y/vT9TVI/80ne3P3U6+8gHp1fEOWAw0q7EJp7jjEyC2ALLS/pPLPDxi4NDngdTXUo9PE S+7Q== X-Gm-Message-State: APf1xPDAs86ICgZo1Y27DMcIn+ec76EThhtjYJvk7BdCAlXPDAijY57F 5FF48sBIjOBTM1WY2das8pI= X-Google-Smtp-Source: AG47ELsMfbRY64PmDt4n/4nLaSMnlhcSlnbecMmupJzz7useE+Aa3ZqxK+KRfdwPNlWnTT7LeKrFFg== X-Received: by 10.46.60.23 with SMTP id j23mr12199967lja.18.1520336803755; Tue, 06 Mar 2018 03:46:43 -0800 (PST) Received: from [192.168.239.216] (83-245-237-207-nat-p.elisa-mobile.fi. [83.245.237.207]) by smtp.gmail.com with ESMTPSA id x23sm3124858ljc.33.2018.03.06.03.46.42 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 06 Mar 2018 03:46:42 -0800 (PST) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 11.2 \(3445.5.20\)) From: Jonathan Morton In-Reply-To: <87ina91mir.fsf@toke.dk> Date: Tue, 6 Mar 2018 13:46:39 +0200 Cc: Sebastian Moeller , cake@lists.bufferbloat.net Content-Transfer-Encoding: quoted-printable Message-Id: References: <20180127130542.25817-1-toke@toke.dk> <20180211172618.13297-1-toke@toke.dk> <20180211172618.13297-2-toke@toke.dk> <12C7E818-E440-40A9-AE67-C6EDD7F87FB6@gmx.de> <08E2549E-769F-4AF3-8D34-22A149432463@gmail.com> <87ina91mir.fsf@toke.dk> To: =?utf-8?Q?Toke_H=C3=B8iland-J=C3=B8rgensen?= X-Mailer: Apple Mail (2.3445.5.20) Subject: Re: [Cake] [PATCH] q_cake: Update xstats format to use per-tin structure X-BeenThere: cake@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: Cake - FQ_codel the next generation List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 06 Mar 2018 11:46:45 -0000 > On 6 Mar, 2018, at 1:17 pm, Toke H=C3=B8iland-J=C3=B8rgensen = wrote: >=20 >> So far it looks like everything is working fine and behaving as it >> should (on a plain Ethernet interface). The one wrinkle is that it >> takes a few thousand packets for the avg_off value to converge on the >> true value, but that should easily be tolerable in most cases. >=20 > So, erm, what do the new stats mean? ;) avg_off: the average observed offset of the transport header in packets. = This should converge to 14 on Ethernet. max/min_tran: tracking the transport-layer size of packets; max_tran =3D = max_len-avg_off if GSO is off. max/min_adj: tracking the overhead-adjusted size of packets; these = should be the adjusted sizes of the corresponding transport-layer sizes, = so can be used to check the calculations. It's probably feasible to lay these out better in the output, so they = take up fewer lines on screen. - Jonathan Morton