From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oi0-x231.google.com (mail-oi0-x231.google.com [IPv6:2607:f8b0:4003:c06::231]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id C08D521F3B7 for ; Tue, 2 Jun 2015 23:00:03 -0700 (PDT) Received: by oihb142 with SMTP id b142so142523460oih.3 for ; Tue, 02 Jun 2015 23:00:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; bh=+vSYuUoNh8+cMX+gJGcT3AhcRwof79dIZRONiIP69ws=; b=kcicOllmHw34sOH6TcFw9W1Aws0yhGiNKUOd55K621UeQmp6M8cVDJMOEMJfCmGLJx XzS7X3iB6/siso5S0ar/4MjWTJOymnmsQA/6dmkLi0Hkn8xVQuWHaRijSHNsA6U03tnk CnD4D+Av3OAQhmA/6byIxUXgRF0t0B/FRNGMSX5gFtYdjlWv/OioOxZvdxkJAnPVyoCJ yiMKXer3ezlfqKufiHYgwTXVVVEXlt+NcUyWGhALcwi3aEkkFSC52B1vEzZXSEFDT3Qm AD1vsBLhssU2TfrF/BAsgcMZeVHNYtiTfZHP72mA2FWN+r1IhEopFj4gIYcCiR8Cz9Kv k/Ew== MIME-Version: 1.0 X-Received: by 10.202.227.15 with SMTP id a15mr25045060oih.59.1433311202656; Tue, 02 Jun 2015 23:00:02 -0700 (PDT) Received: by 10.202.105.129 with HTTP; Tue, 2 Jun 2015 23:00:02 -0700 (PDT) In-Reply-To: References: Date: Tue, 2 Jun 2015 23:00:02 -0700 Message-ID: From: Dave Taht To: Aaron Wood Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Cc: cerowrt-devel Subject: Re: [Cerowrt-devel] ingress rate limiting falling short X-BeenThere: cerowrt-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: Development issues regarding the cerowrt test router project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 03 Jun 2015 06:00:32 -0000 On Tue, Jun 2, 2015 at 10:45 PM, Aaron Wood wrote: > I wrote this up on my blog, where I can intersperse text and graphs a bit > better: > > http://burntchrome.blogspot.com/2015/06/htb-rate-limiting-not-quite-linin= g-up.html > > Basically, I ran a series of tcp_download tests, using increasing ingress > rates with sqm_scripts, and then used flent's box-plots to put the result= s > into a combined image for comparing. Excellent approach, thank you. > On the 3800, it never meets the rate, but it's only off by maybe 5%. But= on > my new WRT1900AC, it's wildly off, even over the same performance range (= I > tested it from 80-220Mbps rates in 20Mbps jumps, and saw from 40-150Mbps. > > I have no idea where to start looking for the cause. But for now, I'm ju= st > setting my ingress rate MUCH higher than I should, because it's working o= ut > to the right value as a result. Me, having been at nanog all day, where I accidentally wiped out my vpn servers (while having a deep conversation about quagga), simultaneously terrified of losing the mail server and trying to fix it..., and now (11PM PDT) having succeeded in uncrashing the email server, and sorted through a zillion documents on how to do antispam, and having also built 7 new virtual servers for flent, and restored my vpn partially, and nuked 27,000 files that were clogging up the works... ...am going to bed. (after driving 2 hrs home). It would have been nice to have got the "fedora 22 uses fq_codel by default!" email and had a little more time left over for dancing before this email. ;) Why do we do this? For SCIENCE! http://www.funnyjunk.com/funny_pictures/4673932/For+science/ gnight! --=20 Dave T=C3=A4ht What will it take to vastly improve wifi for everyone? https://plus.google.com/u/0/explore/makewififast