From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qk0-x231.google.com (mail-qk0-x231.google.com [IPv6:2607:f8b0:400d:c09::231]) (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 C38323CB35 for ; Thu, 4 Jan 2018 09:52:34 -0500 (EST) Received: by mail-qk0-x231.google.com with SMTP id g123so2190107qka.3 for ; Thu, 04 Jan 2018 06:52:34 -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:content-transfer-encoding; bh=ZleMSESG3FKoHI7L8jurbH76t/SOSlkGZ968xmhvq+U=; b=lwFEs8ViMKKZlxfVSQJCoVirJ5ddFalUKikBE6TP4TJtRdI1iW0HfOtixtuyMvkUMw i99/BXpgrfFLDK9cmhXdAOAHzz8wH3WJWKY/ooaQpu5yrhkm0w9WGfgI4CtO/2S9SHFI 1yKdNj62vA+2w1L41RHB+XAbzWz5VnFTy4fY9V4JGqYF0FjWnM9Leq+o31RQgOiv07r0 4XotubU0RZBlBAOe3IgXkWZ07eRHKrZ4FavoSkq3Ti9FIAVcklmiThSw7uDPq3uc2aB3 /sT6U4Dgm47d6JXIjSmzNsgPIyD5/gBkIRyMe/GCAIHzXugy1SEEGZMwgqfLyLcstdrA wMGw== 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:content-transfer-encoding; bh=ZleMSESG3FKoHI7L8jurbH76t/SOSlkGZ968xmhvq+U=; b=RySn9rsq/bc7vRaR0lN1IKnUkaz+s7T11GJ6/jZ+p7DxmwXOi+LwIXxAU1UWFNeSgA j/avjstPCUrpC/3bxlbALomAJ0/ypwxJHmY+03EbDPjLVEwPeVuQxPVrawYmjuu4XRa5 WI6fvz7P3hUvXbI5f5bNQQf4hsrOeypt25LzfwMnfKlbw8bgghg4V3miFhassz9abvO7 YwPw/tw2j731K44aqw/WQ59HewdPG6W1I2AtSzJiXTGMsJ1XoJf3taRxU/XEbxuOl42b uvNmE9aiUjzlJyEyZQt+WXRj/4keWKxcdQW5P5En9sVlhgioQqJSKbt4A60IckD8gD6p P6oA== X-Gm-Message-State: AKGB3mIRgcrpK9mMM9FH2pohOU4HLUhWtU0AKMP1QDb25m5NOsycpobl W/+ttVq1l327wmpqpAU2PvDd1UjooSm65QJTLrQ= X-Google-Smtp-Source: ACJfBosq5NxZPqsTzUSESVrOs+5rXreSYbKymPltBJOBvifyhGF05pzyfrjJmBm03swnbsjvXRBqMTuEBiBXLsFRftk= X-Received: by 10.55.73.143 with SMTP id w137mr6157399qka.17.1515077554421; Thu, 04 Jan 2018 06:52:34 -0800 (PST) MIME-Version: 1.0 Received: by 10.12.193.93 with HTTP; Thu, 4 Jan 2018 06:52:33 -0800 (PST) In-Reply-To: <87bmi97l3w.fsf@toke.dk> References: <87bmi97l3w.fsf@toke.dk> From: Dave Taht Date: Thu, 4 Jan 2018 06:52:33 -0800 Message-ID: To: =?UTF-8?B?VG9rZSBIw7hpbGFuZC1Kw7hyZ2Vuc2Vu?= Cc: Cake List Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: Re: [Cake] Modification of DRR with deficit saving 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, 04 Jan 2018 14:52:34 -0000 To this day I regret mis-identifying fq-codel with SFQ in that first talk. And they ripped the idea of codel out entirely in their evaluation. "Drop-on-dequeue is inspired by new AQMs like CoDel, but we pursue a very simple approach. A packet is dropped if it is older than a con gurable delay thresholdTD. This method limits the packet delay toTD and removes packets from the queue in case of congestion. Nevertheless, the bu er can over ow under certain conditions. To avoid that, we postulated a su ciently large bu er and assumed in nite for the sake of simplicity" But, negative proofs of an idea are worthwhile stepping stones to ones that work. On Thu, Jan 4, 2018 at 6:29 AM, Toke H=C3=B8iland-J=C3=B8rgensen wrote: > This popped up in my Google Scholar notifications: > > https://atlas.informatik.uni-tuebingen.de/~menth/papers/Menth18b.pdf > > Basically, they are proposing to permit a queue to accumulate a larger > deficit while empty to allow light users to achieve the same throughput > as heavy users (users being an endpoint with potentially multiple > flows). > > Not sure how useful this really is, but it's somewhat related to Cake's > src/dst user fairness feature, so may be of interest. > > -Toke > _______________________________________________ > Cake mailing list > Cake@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/cake --=20 Dave T=C3=A4ht CEO, TekLibre, LLC http://www.teklibre.com Tel: 1-669-226-2619