From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oo1-xc2d.google.com (mail-oo1-xc2d.google.com [IPv6:2607:f8b0:4864:20::c2d]) (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 3E3783B29E for ; Thu, 1 Oct 2020 01:09:33 -0400 (EDT) Received: by mail-oo1-xc2d.google.com with SMTP id m25so1147430oou.0 for ; Wed, 30 Sep 2020 22:09:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=NGeoSPn8iiRWxGYWgLNTYHx86UDXbxl2bIvYs/9m89A=; b=jVCc7WMBqqbNuAV77b9Rrm7hKE0BimgGVtEJW5/0P8BHa0aX8rwJ50JwPtVCDIAegu B27NQpUf2o4dvhau9DRrThsVgwGR9m9okOrlAwWJplwYgcqQLeLsky/k+/r+DjnrZd5e uPsUAdGHJeucih+HSMloPxw/IqlxvCjK4SaZ0QReJNPtfaJqw5F0mho3E+yFBIddnoD7 hLD10anP5BavqPzZtiK36w2gwjJU4t2ktW6xDa3zst7WPGPAdIZ63QE8BCt3+aB0G/J9 t0XFjCB1jBVtZ3uYhuGPTyDPTCSg28yKRa0VPM+IZUUxIkiZcGIBzU8gqx1cfdMEPWaE CVxA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=NGeoSPn8iiRWxGYWgLNTYHx86UDXbxl2bIvYs/9m89A=; b=iE+hZ5pIKSWf6wnAKoUbt8V7DT6tgYyBp3z5uRdosMrgmkYiCU23mjCb66j5xRUnhC UFqWWv87Sh34MBuopt9Mh13dHqHEthvPktQ6sbMsuKrnynYEesk2JtbhOhmVcjJLpYc0 A36ciD6IFBH0s+5hLuwULl3BtAbZSv83desv9MzCbz6Z1qw5iPNI/Fxt+t46opiRYrvE yKdxsqls8gJpdiSpnuXBKOpa940vCnUMRVLtDSlivxb4lIkzkfnaDL3D8IZT35sWgba4 IF5gfQkJ8yVwTKrnMwa0wB/QX3OhdwtjKhpeCXHPUElCC6ttYWqmvA87Qo3/BpUvnnuu ej/A== X-Gm-Message-State: AOAM533oJ42ozrpx8WUG0eJIfHh59Cz+7P/IKPcknYAsOOuxwvgPWGfE i+5ZLvZhUkuW97XVDiO7LZh0A59TAQ/sbtwWORtXJ//fDW0= X-Google-Smtp-Source: ABdhPJw+tENH6wbXos2nH6ft1ec2ki7th84T2ikH8KnaxTeTfOizrqK6tHxajyQWNRnCeSwhNvW4ugD2Z8//mv3/1CA= X-Received: by 2002:a4a:d109:: with SMTP id k9mr4420574oor.32.1601528972416; Wed, 30 Sep 2020 22:09:32 -0700 (PDT) MIME-Version: 1.0 References: <32080.1597787724@localhost> <3A782CD0-01F1-40FA-9DFD-B969BD11A566@gmail.com> <87blhq3pdb.fsf@toke.dk> In-Reply-To: <87blhq3pdb.fsf@toke.dk> From: Daniel Sterling Date: Thu, 1 Oct 2020 01:09:21 -0400 Message-ID: To: =?UTF-8?B?VG9rZSBIw7hpbGFuZC1Kw7hyZ2Vuc2Vu?= Cc: Jonathan Morton , Michael Richardson , bloat Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: Re: [Bloat] cake + ipv6 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: Thu, 01 Oct 2020 05:09:33 -0000 On Mon, Sep 28, 2020 at 11:14 AM Toke H=C3=B8iland-J=C3=B8rgensen wrote: > It depends. A 'sparse' flow should get consistent priority > That's per flow. But you're misunderstanding the 100ms value. That's the > 'interval', which is (simplifying a bit) the amount of time CAKE will > wait until it reacts to a flow building a queue. > If a flow exceeds its fair share *rate*, > it'll no longer (from CAKEs) PoV be a 'sparse flow', and it'll get the > same treatment as all other flows (round-robin scheduling), and if it > keeps sending at this higher rate, it'll keep being scheduled in this > way. If the flow is non-elastic (i.e., doesn't slows down in response to > packet drops), it'll self-congest and you'll see that as increased > latency. Ah! Thank you *very* much for this explanation. I greatly appreciate the effort everyone in this group puts into explaining (and tolerating :) ) new users of cake. In my case: I am happy to report this is *not* a bug or an issue with cake, as I originally thought. I am able to reproduce the issue I was seeing (high ping times as reported by the xbox game's network monitoring) w/o cake being in the mix at all. So this issue is either with how I've configured / built openwrt, or with my wireless network mesh, or with the xbox itself. It is NOT an issue with cake. Thank you all very much again. I will continue to use and test cake and let you know if I encounter further issues with cake itself. Thanks, Dan