From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qk0-x235.google.com (mail-qk0-x235.google.com [IPv6:2607:f8b0:400d:c09::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 AFB5D3B2A4 for ; Mon, 27 Nov 2017 07:18:10 -0500 (EST) Received: by mail-qk0-x235.google.com with SMTP id c123so21677415qkf.7 for ; Mon, 27 Nov 2017 04:18:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=FhL+LEFs+S4kuw0kJohgToyM6VLlIASlpC7hiPr+gg8=; b=JGmdZKuClTSIU8FvQxqb9AkuwIv99egkibkO41sAoDvKsHFLujJMLHXMg5I5NwwyEP OZ+OFx5VpQkAe/FpbVm1l9Fi1PYf5ysTtvdK8IprRmIxTvbft01TlR+EkHxFTx3ULXXn /tUDhPGGhF7iL9621WIqxFLlOSVsEDkfGm0ukfOwNCsy3yjv92AK8kW5NL1b1nkHGkAL yD9gl/mteHO9EVs+55LCq+/fBfed5/uI+/E9S707S1GUu+/7KeG5TmeA+j3RDBKBUfos ZGpJAK2/jGAgAa84s46XxvWE9VrxWTNZR3FOZ1rulfwSX5NEUc0mPeYIWavbjpmCLPi1 rgcg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=FhL+LEFs+S4kuw0kJohgToyM6VLlIASlpC7hiPr+gg8=; b=mTbu3cZZasPmp8JNi5K57zyLryrPc9bDImz8Zp3no9Z9MyPZKbItaYj+xoP6ymJg2O lhUNAyVJ1DN361OZ602+F/nqM3eRaQw0Nb+RsQO07Cm758tc1sC5npYi+Vp4fcel0dA4 c/CpFFMp1T3vjVSaRFUXYMnrCKPc2E83Q99RpyPX9gExudxEx+ts/w7Obfa82Iy6lD2L pi3WHHEB1xETq5AkrTgNfEcWlo6/dKhuFCbToBWDhDtZjYlWKUD753x3eazGs1Ar4snt u1/eIE2iK5LeJuFoggh90+uap8BKAAWqkWtS3rMhr8RPopNbhd0cpvMVm60El5yxakzV S2kw== X-Gm-Message-State: AJaThX7Ygw5aZG40KfzCWyF+bIFXbG4I33h3dawFsqeyl1JZ6Y6lJ2XG HyT6slCY8/efdQ+HzjSIUS3YMklqONXS3QopCyY= X-Google-Smtp-Source: AGs4zMbh6AvZi/xNIVSLcdjZxqOEKCaYr5fqBM2eDJx8gDiekRN5VtKf3Pmd4g0rxE/gn/Ux/EvF5Iij0oa4RSQ1n9A= X-Received: by 10.55.176.195 with SMTP id z186mr20085247qke.246.1511785090390; Mon, 27 Nov 2017 04:18:10 -0800 (PST) MIME-Version: 1.0 Received: by 10.140.102.179 with HTTP; Mon, 27 Nov 2017 04:18:09 -0800 (PST) Received: by 10.140.102.179 with HTTP; Mon, 27 Nov 2017 04:18:09 -0800 (PST) In-Reply-To: <27F95EB1-490B-404C-8F77-98646B6159E7@gmail.com> References: <85E1A7B2-8AA7-418A-BE43-209A1EC8881A@gmail.com> <87d1447z9w.fsf@toke.dk> <27F95EB1-490B-404C-8F77-98646B6159E7@gmail.com> From: Jonathan Morton Date: Mon, 27 Nov 2017 14:18:09 +0200 Message-ID: To: Pete Heist Cc: =?UTF-8?B?VG9rZSBIw7hpbGFuZC1Kw7hyZ2Vuc2Vu?= , Cake List Content-Type: multipart/alternative; boundary="94eb2c0702ec4a1f61055ef5e554" Subject: Re: [Cake] cake flenter results round 1 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: Mon, 27 Nov 2017 12:18:10 -0000 --94eb2c0702ec4a1f61055ef5e554 Content-Type: text/plain; charset="UTF-8" Here's the difference between "srchost" and "dual-srchost": the latter imposes per-flow fairness on traffic to each host, with a separate queue/AQM per flow like with "flows". The former only has one queue/AQM per host. Analogously for dsthost. Then "hosts" mode allocates a separate queue for each host-pair encountered. But "triple-isolate" isn't quite analogous to "hosts". Instead it tries to heuristically behave like either of the dual modes, depending on which one is likely to be on the LAN side of the link. This allows it to be a reasonable default setting, though the "dual" modes will perform more reliably if chosen correctly. - Jonathan Morton --94eb2c0702ec4a1f61055ef5e554 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

Here's the difference between "srchost" and &q= uot;dual-srchost": the latter imposes per-flow fairness on traffic to = each host, with a separate queue/AQM per flow like with "flows".= =C2=A0 The former only has one queue/AQM per host.

Analogously for dsthost.

Then "hosts" mode allocates a separate queue for e= ach host-pair encountered.

But "triple-isolate" isn't quite analogous to = "hosts".=C2=A0 Instead it tries to heuristically behave like eith= er of the dual modes, depending on which one is likely to be on the LAN sid= e of the link.=C2=A0 This allows it to be a reasonable default setting, tho= ugh the "dual" modes will perform more reliably if chosen correct= ly.

- Jonathan Morton

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