From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout.gmx.net (mout.gmx.net [212.227.15.15]) (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 4C5FF3CB35 for ; Tue, 23 Nov 2021 02:07:34 -0500 (EST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1637651252; bh=a3lTYTghzSRBNEDtPu3QqhA6PnUEXMj/eU0oZCnnLE4=; h=X-UI-Sender-Class:Date:From:To:Subject:In-Reply-To:References; b=D+b3i5iqCkIPhFvD1ffzKZcl/DpMBNilbnGrHG7MqMfTlYyx/ORFE8l+Cz24jV18c sRgB/a26PE51SzuOc88B7OJpTYDa31dqkKTRhA1jnT4r16aK1poRHnq4vq/XLOAnh0 aGFyEaETP1w0z0Vieh+G2wsvHTHD7czmw4ioTOXM= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from [127.0.0.1] ([80.187.108.241]) by mail.gmx.net (mrgmx004 [212.227.17.190]) with ESMTPSA (Nemesis) id 1MhU9Z-1mCUFD1j7r-00eh1c; Tue, 23 Nov 2021 08:07:32 +0100 Date: Tue, 23 Nov 2021 08:07:34 +0100 From: Sebastian Moeller To: cake@lists.bufferbloat.net, Dave Taht , Cake List User-Agent: K-9 Mail for Android In-Reply-To: References: Message-ID: <67BC6CC2-F088-4C0D-8433-A09F4AC452FE@gmx.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:YnNWdYOQn42U4JEck/gz4uQGNL6Q2SDzDmtGvYF/G2OIBfEBSQQ p/fy7UvXKAph4QMT3QXbMqZ2oyGZWeZfMmbnlcjcAIhgilBngpNL4u13F8YZmAp/9doezE8 oREmvqVrpDg3KXOCjS2yo5XfUU/NwyZM0Bdj8YDKmcy/L6CY6ihEZ5PBALd4oPd/y/wrSwC ISJhfGRs5Y3oLkMpwyVOQ== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:yukjQkthVaA=:Wkdg8C1M+uvHJJ9mcXkkMx RC7yqO0UPaAE0EnTXUnXNV3EPIos58M36NCaxOlANY15nbzNC0npj9hCei9AG0fY9ZZpvqVCB ykDOftBjUWBDNy8XDDwwEL0aRcxqCgbSojuNLakRrxGUuc56sau9ywwJG+R8AnaIeN6A9sTqB z6u7DmzJO2oL+gYraV93q/9KughTLUFn5i1DqTNSq+3view8zfuAzluLJsSjn4bn8AZTW5shw BkiLJXnMdDU6LSkfyOMdg41UPkhNsWOttnDDbBOxERpNMIvt8rSSvAM3YMlrUUHrsEXtiZ5aT VYtoaIm2TC6GeHXm4zbq2hT3tKyNOZ7edWfbU06YGD1fDLOti7wcwBFcQz/EdNrcQX9wrSQYK L71hMPhGEfvO1DykJisfE2ka1LieyxrJ7LLm/95GgK0DvhYtSJihiURTV8Q3MPOALTDPZs6RL QcF3Mm3zFxVp1VEvjD1KSEBLw9i6RPQGdCqp33eUypF40stkA38ZknjWIdxmVnjFZmYkfZ6oi 4EIQ4oMuRWsEny+cAJdSnCLMO7WCfB1fEDUZKGNyWZbzBOoh5+axDkipsrdFgCUsdn7C4x7TB hQ38DyMqSE/NSdof2dSOcWZt+kga0eAL0hZTkWiisnCsvhTp2bF2TNJUhtGzySiUtz7NvB+QV 7BBn/eUZjILPEnw8CRdUv4MOxwTv4F5b9xwBw1Vqm3Xy8hUVcYfSqOeeh6hPIFC4LzQYXfd2t GjcipRtPe3RoJ9QlSnsIv8v2NyMgsOE7HLSolrYv4oGPmEEhHJ4ApBs8lRJMCHb3MoVBOhcJD LXvvXDq4Na593wsTyTu7NfNPPL7TU+gPpF08jLemkMlpmkXkQf71GPCSqJYFG00F0NFYYNZkz KAqbyTBQdvrkaB/L9/t5DfNPwN5CpqG2jGy33Pzsvo5HuVGFcPn2MffA9ral1zbeWdpBsIopm wdPzMo/7hvgpL3JqioFMe5+okRC8ENWs5gWdldoJP03aSBps4kmL1NptEMaNiNhsFNXm2H74b CCARv6oIoO2Tt2DSXHf4nbLzHIf3wd2o2NLlhWzP1XH6Hi2b1XCTKHCkE+lpVGHWawdtj5Zed B4iycPddzZ4dcA= Subject: Re: [Cake] tossing acks into the background queue 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, 23 Nov 2021 07:07:34 -0000 Hi Dave, On 23 November 2021 06:03:03 CET, Dave Taht wrot= e: >ages ago I'd (we'd? I really don't remember - forgive me if I've >forgotten who actually leaned in on it) written a basic ack-filter in >ebpf=2E this was before cake gained tc actions and my primary use for >the tech was for asymmetric connections, and before the good >ack-filter arrived, and I was (and remain) unfriendly to this level of >dpi=2E > >That said, on a symmetric connection, deprioritizing pure acks to the >5% background queue nd then turning the cake ack-filter loose on it >might actually work=2E > >Am I on drugs/is there any point? I think at leat when using multiple priority tins forward and reverse traf= fic should by default use the same tin (I can see non-standard situations t= hat want differential treatment)=2E The argument is that unlike earlier att= empts at ingress shaping that tried to throttle reverse ACKs? cake/codel do= proper 'hit the brakes' signalling via marking/dropping and we want that s= ignal to reach the other end as quickly as possible, no? Regards Sebastian > > > >--=20 >I tried to build a better future, a few times: >https://wayforward=2Earchive=2Eorg/?site=3Dhttps%3A%2F%2Fwww=2Eicei=2Eorg > >Dave T=C3=A4ht CEO, TekLibre, LLC >_______________________________________________ >Cake mailing list >Cake@lists=2Ebufferbloat=2Enet >https://lists=2Ebufferbloat=2Enet/listinfo/cake --=20 Sent from my Android device with K-9 Mail=2E Please excuse my brevity=2E