From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qt0-x242.google.com (mail-qt0-x242.google.com [IPv6:2607:f8b0:400d:c0d::242]) (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 B90CC3B2A4 for ; Thu, 16 Aug 2018 17:08:44 -0400 (EDT) Received: by mail-qt0-x242.google.com with SMTP id z8-v6so6465537qto.9 for ; Thu, 16 Aug 2018 14:08:44 -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=IMmFdACnGJ/j3dSWSazbFpSIBx/SlCUXo+qrSIoeKyw=; b=Wx8rKRfwjnpfefhT6SaqzC7HJLFVERbZTOtAnWAPQOAyFIxiKGxNVHK2n0uPyIyOXE RMWZ7DTHN/it4YTrgPxb0o5INwRdFNKDYiKjuWYkgw7Esu6Lsgm5FJZjDnxsX3fSdSpy QsWFsixs3f7SwOs8gF4U73ffynv4imc/0LXPC+NpJs/29u752d9ycMR+o7p+sflS3xVG E+UKvjMuV9av0Vbi0scHCNc9KmHz9ydzS3NTf+uzWlPjusdcMp2q4OfscjCrgiyh8zDB /a5SK0J/iMVOYj72HKwLfXwuadRg7MHdAty9mrr4/ZunFkEHv0qjwAuHDeNqatU5pExO r8rQ== 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=IMmFdACnGJ/j3dSWSazbFpSIBx/SlCUXo+qrSIoeKyw=; b=dfeP9vty3LhWWLXkrIB9Sd1FLHfVd94iY0IITYWoT5Ee6Zx+e8ITcW17dNqjKA713C 9zypMfRieyUyJ7t+uqyR1J9PTzyyv+oIGlvyKhBG6PnLY3bsbNkG0qgpV/voZyI8My/P Ik5VdBeJcZyhL5ufW5Lsdbqsxlb4NZN4BgvXl7zf64nNTHxfQhWW9BMd7d9YVhQXA4Bu awSBfxP9Uyzd9LgK3U1ZeDOS9BwvkWPj+/CltcSOu1MkSiuk9vAHOzKFfqHUThxATOD+ AdzC4EsoVkReuzxIj+LzQ+J4dwu6hG/5+TGtqvYGMyJQpISzBO95+4I78UKb7m7gE0Y8 nXuw== X-Gm-Message-State: AOUpUlEfa0dYv+RaiTNyUwsiSrzEz54dKDHNl+q9vPcN5k9gfSyjdcjg hxR4QbJq/qHBaGyrwvaJ1YbAGO+IJVfq86fduug= X-Google-Smtp-Source: AA+uWPzAFWihN6YPzuCNqt1oRiM+204klx70E/NmtPqiQtu7M74Uo+seuxaQA7AXTD4qcpK8XTu1SNf+THHhJ+DnuRY= X-Received: by 2002:aed:2686:: with SMTP id q6-v6mr6053743qtd.199.1534453724141; Thu, 16 Aug 2018 14:08:44 -0700 (PDT) MIME-Version: 1.0 References: <152717340941.28154.812883711295847116.malone@soybean.canonical.com> <4f67f9b3-05a1-8d15-0aee-dfe8ea730d7c@gmail.com> <73c25a21-0ace-b5ee-090e-d06fb3b8dc60@kit.edu> <5CCC459D-A142-42F9-BD10-97E69ED7E8F3@gmail.com> In-Reply-To: <5CCC459D-A142-42F9-BD10-97E69ED7E8F3@gmail.com> From: Dave Taht Date: Thu, 16 Aug 2018 14:08:31 -0700 Message-ID: To: Jonathan Morton Cc: mario.hock@kit.edu, bloat Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: Re: [Bloat] Fwd: [Bug 1436945] Re: devel: consider fq_codel as the default qdisc for networking 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, 16 Aug 2018 21:08:44 -0000 On Tue, Jun 5, 2018 at 12:49 AM Jonathan Morton wro= te: > > > On 5 Jun, 2018, at 10:44 am, Mario Hock wrote: > > > > Just to make sure that I got your answer correctly. The benefit for end= systems comes from the "fq" (flow queuing) part, not from the "codel" part = of fq_codel? > > That's a fair characterisation, yes. > > In fact, even for middleboxes, the "flow isolation" semantics of FQ have = the most impact on reducing inter-flow induced latency. The "codel" part (= AQM) helps with intra-flow latency, which is usually much less important on= ce flow isolation is in place, but is still worth having. So, jonathan, this portion of the debate leaked over into https://github.com/systemd/systemd/issues/9725 And I lost a great deal of hair over it. the codel portion is way worth it on "end-systems". > > - Jonathan Morton > > _______________________________________________ > Bloat mailing list > Bloat@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/bloat --=20 Dave T=C3=A4ht CEO, TekLibre, LLC http://www.teklibre.com Tel: 1-669-226-2619