From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from EUR01-DB5-obe.outbound.protection.outlook.com (mail-db5eur01on0076.outbound.protection.outlook.com [104.47.2.76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 77DF83B2A0 for ; Thu, 2 Jun 2016 07:09:59 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=darbyshire-bryant.me.uk; s=selector1; h=From:To:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=WL0wbFPuCDSlTT0K6sZEn7rG9qIWknrOJMNnzyPkaKU=; b=g9NEBw78F10BtIGUw2k43dha3j0aIk2I8EK9/f9+5z5Q0okuwWv0HuTkaj1H6oSNsVZ4yAaun8jeAmNvcx152NcVGR1px7JDjkEERd+Xwa0odGcpcP98QrADYrql8AiJenNVNhYcpZj/V4XQn68iBNnTxMLRhzCp3xEmcHOLlnM= Authentication-Results: lists.bufferbloat.net; dkim=none (message not signed) header.d=none; lists.bufferbloat.net; dmarc=none action=none header.from=darbyshire-bryant.me.uk; Received: from [IPv6:2001:470:183f:da2b::4007:25d] (2001:470:183f:da2b::4007:25d) by DB5PR07MB0933.eurprd07.prod.outlook.com (10.161.200.140) with Microsoft SMTP Server (TLS) id 15.1.501.7; Thu, 2 Jun 2016 11:09:58 +0000 To: From: Kevin Darbyshire-Bryant Message-ID: <57501404.5010704@darbyshire-bryant.me.uk> Date: Thu, 2 Jun 2016 12:09:56 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.8.0 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [2001:470:183f:da2b::4007:25d] X-ClientProxiedBy: AM4PR0201CA0015.eurprd02.prod.outlook.com (10.167.253.153) To DB5PR07MB0933.eurprd07.prod.outlook.com (10.161.200.140) X-MS-Office365-Filtering-Correlation-Id: 90606eef-8f0d-483f-801f-08d38ad66f40 X-Microsoft-Exchange-Diagnostics: 1; DB5PR07MB0933; 2:OEbdhHXqs4gO9zgxZVOy2is93BgFOTMFU2xTmkzn/pJFCkzLBD7E0ZLoSBA7FEdwzoklZ8wEJpzIBn6q2YAe5CbiSBCFynnPE0/qCHM+a6QSX5kVlqTVTIH/QXP1NNR5wkNdajfAapKt7iskAglXaDlWmeDpdH9yq2W7KSNcuCWK0VQICgsup87vy6W9KnqR; 3:P+oxBWTyw/AwKnqxRtuOuTwMGSmE9p4pomcgs1foNCpPZIfPg702+ItoGrjugb2/TsIBHC+XTaeQAnRfTzTDVDOVRyfZ1tWaEfhcPEZF0sXxtAUZYglbLKKADXWzllJ8; 25:Zxj4F9iwtzcXA6ij4XRtdsP8flpIqRt1RGI/S+dhShk5GmeXoM3uFiJwto85P1UchWmxQmUqUtm/IWEYhAAhOqogCGtbMsCiT+H2la0zBkFcYS8siqg43ScXmqLzBRXeRvHd7uiph2Kn1pIcTdmfbajHIxrhqf2YPoJArxhrozUtSXJFpQZH1oiiPLIlg1JEXq/t6saPJx/1rJFSpmD4UdU+hXmMi8oZxzrnf5KwTCxhmYe01qvxkthNHDy+3C5NePBADM41Z7obmj7fuEedjLq0Ez7oBuis7EBpoq//8d1pLDmJQh51IVDLeJCvJ5JYsKxDqzprSj4KbcYvj8AzHRii+4ubi+FeUu5XtqxGJu3qYN1C4841rtkpmg7ReK6qJaa1TW2iVUyN72evG23o8pAAd3hSHfHI3OTdrMSqrtk= X-Microsoft-Antispam: UriScan:;BCL:0;PCL:0;RULEID:;SRVR:DB5PR07MB0933; X-Microsoft-Antispam-PRVS: X-Exchange-Antispam-Report-Test: UriScan:; X-Exchange-Antispam-Report-CFA-Test: BCL:0; PCL:0; RULEID:(6040130)(601004)(2401047)(8121501046)(5005006)(10201501046)(3002001)(6041072)(6043046); SRVR:DB5PR07MB0933; BCL:0; PCL:0; RULEID:; SRVR:DB5PR07MB0933; X-Microsoft-Exchange-Diagnostics: 1; DB5PR07MB0933; 4:L8ohEFClVJE2v5z+BE4DPAFmsr+ye2Y4zbuWYswMEBFqQUq+ha7em4FUMyLAi0YaJOVQy6SV7PVi37XQeHn8yOuFPzWISGT7opFybCaAWJX4KbRcgkPG/dst6HUJJ7KeL6V0p9t7twhJPEMdQ0T3dqsekulaiqC+htAZJ5MSzRpzWzVUJK2QCtpspfmiES0zgrKa3Tom0zIcWCySlG5Z95I8DrNKc19CjAPNlWvD7lHewrVPwdvcQ52+Faw+ZiekaGaqLm8MAMlUYCwrm0Yv3yRxoejppStJq0f6735h+Vn3al7g51CjR1ryaezaI3g10iunaNTN3Nc5DRuCZiXMyFbKUYyhzfATpW9pAqrDd4gXO0pmyB/+6OWoaFF23pYOhY+hdC4smwMeDgNSk2DaT/J87e4icwrbA55lN5W0pAI= X-Forefront-PRVS: 0961DF5286 X-Forefront-Antispam-Report: SFV:NSPM; SFS:(10009020)(4630300001)(6009001)(53754006)(2351001)(229853001)(23676002)(122286003)(65956001)(117636001)(59896002)(74482002)(50466002)(2906002)(65806001)(50986999)(86362001)(92566002)(4001350100001)(107886002)(230700001)(36756003)(54356999)(87266999)(5004730100002)(83506001)(47776003)(110136002)(65816999)(5008740100001)(6116002)(586003)(189998001)(42186005)(450100001)(81166006)(77096005)(8676002)(3826002)(62816006); DIR:OUT; SFP:1101; SCL:1; SRVR:DB5PR07MB0933; H:[IPv6:2001:470:183f:da2b::4007:25d]; FPR:; SPF:None; MLV:sfv; LANG:en; X-Microsoft-Exchange-Diagnostics: =?utf-8?B?MTtEQjVQUjA3TUIwOTMzOzIzOm02Y3JTMXpIczNZa1NWZjRDb3VkWStqWDZa?= =?utf-8?B?eUdIZlZDaXpkaDVsb3AvaWtHVEJIcVUvRGZ0UkU5Wkt3YTQ5SVR1L3R4VThM?= =?utf-8?B?WW1wT3Y1RWNsSHA3QklHZjdKNmpxYkhFNnlFSnllVysvaFVNZmgwVWUwWC9o?= =?utf-8?B?MlNIbm5TdXdkdjZPbjYrY2lDY0xIem5Ldyt0WnE0akZjbFRSS0x4aXlKaHNm?= =?utf-8?B?TG45VWN6WHBQLzRPRFZuejFqeVZSMStZTnpZMUlVaXluZEVWcnNjNnphMEEx?= =?utf-8?B?RzB2bWVjWUd2czVZcXQxd1VKM2puY2xYZGpGdDhjTk1xS0NGVTg2TGhBSUtG?= =?utf-8?B?QkdCZ0JTMXlCQnhnblBVa0djeURVc01vUmZoUkpxaHhoWnFHUkMxYk95ZU9q?= =?utf-8?B?SkZTTzJYNHl3dlQyQlljQ2hwNUxUcXRJMWdJNGVWZDQ0RE5LTDczUzZFOWxV?= =?utf-8?B?T003NzBiTzM1WG9nMFFiR09yaVM0V2N4d3kwb25zWHZvOVFZdDdXVDZlR2tU?= =?utf-8?B?NWtyUFV4QWwxS2ErSGxNTklSa252UUZqeXpKa0g4MTZoQWhLMGhsN0JZa080?= =?utf-8?B?M2JIRkN6cWtsZVllQU5FeG0xd0JTZDV6SElzU29wdUhTbW5rSmtUbHNVdlBR?= =?utf-8?B?VHI0S20zMFRqVmNEOGVJY3FCSW5JRDkvUnJ4TVRHdURDekJDZ29mUGRCNTBk?= =?utf-8?B?WExjRG55eFdHUWF1OWNqNDhHQmdZQnNXMlhPVlpxWXNtcFVkMEUwNHJyeXB3?= =?utf-8?B?SWorVXN0c1VXTDcvOXUwQWtHQlZRbHpMMmRoM3o1cVpoL0F4c240Snk5VHJ6?= =?utf-8?B?S3IyQThZVTZPWHl2NUZsRldLTHp1azg2TkhXMGhhRkU1MzNDS2pDTkRLLzJT?= =?utf-8?B?dWJtVVVxekJoMm5teWN3NVkvaWRKWUsveGVINTlneGJvNm93SnprM01ZTFlJ?= =?utf-8?B?RnkrOFU4TEFqRzJCeU4wWXJSV0lMUTlLN1laczNUbDJ2b0xSTERHWWpIeEtv?= =?utf-8?B?V1daU3U2Y1k5TnVDcVF1STZ4QkNyK01wUTlaaDFQMk5DOHBQb0VtLy9TaTJq?= =?utf-8?B?eWlibDQ1RWFlSTUzTFdnY3pBZHVDY1JCTGMwRytmUHB4TzMrTzIwOXpoVGw1?= =?utf-8?B?WjA4OE1mWlcwbUJLdmJDcHRGaGh5Q1djb1JCcVJScWV5dXliMVNhQ3FoQURj?= =?utf-8?B?dE9EcmlmL3VaRHpNNk9lVVhTdENBdUxhcEdObjFPOHppN1c4aExZV1NmcStk?= =?utf-8?B?eEhNdXVWaVd3bmlXR1Q0TDV2QUVQT3RKOTVvVlN2OEdRZlBYZnNrWXdLRjdG?= =?utf-8?B?YjlLS1duQVNoVjJ4UmdheVd6bGgrSDB6anZBeHNQVnZlTmlMRkxrWmZJancr?= =?utf-8?B?N0dTK0VSR0Z3eDUwVlVyWUxBVHBHeTlUNTlrMnRRPT0=?= X-Microsoft-Exchange-Diagnostics: 1; DB5PR07MB0933; 5:taztup1cweIRNo6Fyj0BeGawRgRA/VDAikX/bKQBdUjbbN63i4H/QtrFP4lMJi2eI/y6Q5zdvc6701yD5uOopxRCV3pnBj/n4rO2rmsf7LG5lxnuH0zrsQK9dU8/GL9xer9FrLTpi9TfqXEb0M1gxw==; 24:aQmYvO14Ds+IOrO5o6FjmmdqG34zp+uhgkBxza4OHTQEEfvo9tdlb5GigvdxfytRAcQdCZN1iG+/CtZCMeM+O5SKH0k+Ka5N3U0LCO0HtiY=; 7:2Ry9/XiOIYHQjLp4IICSGzU6fgTMuuHcK5DkL5bnJ9H1sVS4ATZ21x9qr2gQua+PHhRjdVu0eiz5uRd86/gdKCqANahw/U3gefXg0QZCz+TKLTASxH75njQc+ICqXfOEt3H3Hr3cZ9Mo9Ww2t19icd8rLb4VOTurYcuEigjqsZG/hmoG0JNVv/9dEJfn9IOz SpamDiagnosticOutput: 1:23 SpamDiagnosticMetadata: NSPM X-OriginatorOrg: darbyshire-bryant.me.uk X-MS-Exchange-CrossTenant-OriginalArrivalTime: 02 Jun 2016 11:09:58.2410 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB5PR07MB0933 Subject: [Cake] flow dissector idea/enhancement - help 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: Thu, 02 Jun 2016 11:09:59 -0000 Hi All, Cake uses the flow dissector API to do flow hashing...including per host flows for dual/triple isolation. The unfortunate bit is that the qdisc inevitably gets placed after packets have been NATed on egress and before they've been de-NATed on ingress. When mentioned before Johnathan said "flow dissector ideally needs to be tweaked to do this" or words to that effect. I'd like to progress that idea...the thought of me kernel programming should horrify everyone but really I'm asking for help in being pointed in the right direction to ask for help...and go from there :-) Kevin