From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-x230.google.com (mail-wr0-x230.google.com [IPv6:2a00:1450:400c:c0c::230]) (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 8EAFB3CB35 for ; Sat, 23 Dec 2017 04:59:29 -0500 (EST) Received: by mail-wr0-x230.google.com with SMTP id l19so17404674wrc.2 for ; Sat, 23 Dec 2017 01:59:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-transfer-encoding; bh=QPukTm1pQKGQSWDAq2g7obcBQllOXgK23Noqbk8fv4w=; b=ZatHXzTTwlb54tM3m0Y5Ursav3AKNRz/YmnOJeP1i68iBeJCq7AoKjkUSFLDw8iakC dfW6X0xpdTn0ZuFxf4xXa548r4whZ+W8i1lQHAV9pliuLbQx+KC1Vs3hrZyfK3RFnZoh Cri6EH4hS4/iqbDvPHKcxfCVWMNZ8jBkJjeOOha3gd1U/lMl1b4LWt+K5Be/zfTQ76j3 t40jKkhXQL+iuk4nRDArjyFJtxHkTBJww3WTS9IoE6rbtj9a5vlipMYQ793iQVVTNMLN dg7SWKCF0zfm8wKvEKFqBjugQI15UhRL6c+3IEdtxJt5dv9BSOSd4/z7hNkiuyDDnyl9 TvkA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding; bh=QPukTm1pQKGQSWDAq2g7obcBQllOXgK23Noqbk8fv4w=; b=L9ji3jTUzhJ05jk/PguzUfSdJ1PFadyhO+4jnT0k31e8VPSKluyDPn4SfxE243QS8z wPUrO5emv9bWiSoJ6puwJ/BTqXkQLvmO7yDMQ21K5JVV1mQDo3zVqI0lk/XVulo+9ptZ ASiUxhulk8ha/tQif6xqTZQ+SAv7fM6yKLov4czzWMe3JVe4u1OWrovgxh+oWTfigach 5MT85ifbPLCes9x7ST7V5KTdpcld0m1R3XYQMwPCFyozA4Ym5rXmTuexfOFKb6tDj5q4 zp36/39M628LEAtX1AIKsKJjbRZgNu7xrGX9IDiz+z/C4Kz89yru+a4qYXvP4OVX+Wwm xlhQ== X-Gm-Message-State: AKGB3mJ2K0QiJ3/Azyp2Dx8MxLIelhKhHGAYwvy8rhVQtsQ48QQyslgZ WNZvW7+i2qRwVd0Rmtw2b5H1wg== X-Google-Smtp-Source: ACJfBosUv3Kos1s0PP4/FQUCmK6a9Y76TaujT5G4veJ7SAgGGBps3p3X5ud/aR++36WBP5waqJOzNA== X-Received: by 10.223.160.233 with SMTP id n38mr18788100wrn.45.1514023168415; Sat, 23 Dec 2017 01:59:28 -0800 (PST) Received: from [192.168.0.3] (179.131.90.146.dyn.plus.net. [146.90.131.179]) by smtp.gmail.com with ESMTPSA id o107sm35113752wrc.63.2017.12.23.01.59.27 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 23 Dec 2017 01:59:27 -0800 (PST) To: Sebastian Moeller Cc: Jonathan Morton , Cake@lists.bufferbloat.net References: <31d49a5d-02a2-3dc8-a455-52d453b83bdf@gmail.com> <3b255661-1b16-cc29-958f-bbbedbcbab9e@gmail.com> <8FB76CCB-1AAB-42F6-AEF8-D0D8A438EA91@gmx.de> From: Andy Furniss Message-ID: <7ca86dce-7645-38e8-df4e-148245e9991c@gmail.com> Date: Sat, 23 Dec 2017 09:59:26 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:54.0) Gecko/20100101 Firefox/54.0 SeaMonkey/2.51a2 MIME-Version: 1.0 In-Reply-To: <8FB76CCB-1AAB-42F6-AEF8-D0D8A438EA91@gmx.de> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Cake] overheads or rate calculation changed? 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: Sat, 23 Dec 2017 09:59:29 -0000 Sebastian Moeller wrote: >> qdisc cake 1: dev enp6s0 root refcnt 2 bandwidth 19690Kbit diffserv3 triple-isolate rtt 100.0ms noatm overhead 48 via-ethernet total_overhead 48 hard_header_len 14 > > This looks like expected, the in-kernel overhead is added to the specified overhead, just like in the past. I really really wished cake would report the packet size before and _after_ its overhead addition making sanity checking much easier. BTW tc's stab might be useful as an external check... I also wonder whether the kernel's behaviour in regards to ppp interfaces changed between kernel 4.4 and newer ones, I see the same weirdness: FWIW my pppoe router/pvr/nas box is running 4.1.46. It's a bay-trail dc board and they are prone to cstate bug locks, which is why I'm not running anything newer!