From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout.gmx.net (mout.gmx.net [212.227.15.19]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (Client CN "mout.gmx.net", Issuer "TeleSec ServerPass DE-1" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id 1F54A21F220 for ; Sun, 29 Dec 2013 03:46:53 -0800 (PST) Received: from [192.168.2.43] ([79.202.32.60]) by mail.gmx.com (mrgmx102) with ESMTPSA (Nemesis) id 0M1RHp-1V9735483F-00tU3X for ; Sun, 29 Dec 2013 12:46:51 +0100 Content-Type: text/plain; charset=windows-1252 Mime-Version: 1.0 (Mac OS X Mail 6.6 \(1510\)) From: Sebastian Moeller In-Reply-To: Date: Sun, 29 Dec 2013 12:46:49 +0100 Content-Transfer-Encoding: quoted-printable Message-Id: References: <54B228A1-9362-4CC5-BDC6-C8968A5DDE94@gmail.com> To: Dave Taht X-Mailer: Apple Mail (2.1510) X-Provags-ID: V03:K0:oeNPQJWarJCFafk54V/Od2LZiQRBwqKfzxfv4X/NBw1+HKs6av6 LT5BasABdvUhVjzwZw1n1pIH8f2k1141h+q3uDNN757RMxpq3oDkUyZmZZU5FKmiyTShwtf V6e19GxUN2X48CdiRpB/O8UNuc4ULP0siLjPHJJpBOkr9+Tqt2I3NW5lM4N+lxTpSLIHf6L Pn7/SVxu8fVv6Nm5yB5Hg== Cc: cerowrt-devel Subject: Re: [Cerowrt-devel] SQM Question #3: How shall we recommend people set their upload/download speeds? 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: Sun, 29 Dec 2013 11:46:55 -0000 Hi list, On Dec 29, 2013, at 09:53 , Dave Taht wrote: > On Sat, Dec 28, 2013 at 8:33 PM, Rich Brown = wrote: >> QUESTION #3: How shall we recommend people set their upload/download = speeds? >>=20 >> Although we have already spent a lot of time on the list batting = around ways to think about this, it seems to me that there are only two = choices for recommendations, especially given that most people looking = at CeroWrt are in a =93TL;DR=94 mind set: >=20 > What does TL;DR mean? Too Long; Didn't Read... >=20 >> 1) If you don=92t have an accurate sense of your actual link speed = (e.g., you haven=92t done a link speed measurement), you should take = your provider=92s published specs, knock them down by 15%, and enter = those values in the SQM Basic Settings tab. [Or should they take an = additional 15% off that already reduced value?] >=20 > 92% on the up, 85% on the down are starting points. >=20 >>=20 >> 2) If you have done measurements of your link speed, you should enter = values that are 95% of each direction=92s measured speed. >>=20 >> Is this the right recommendation? That is what I thought, but it seems 95% was too optimistic=85 I = have found that ShaperProbe's = (http://www.measurementlab.net/tools/shaperprobe) capacity estimate is = pretty good at least for the low speeds I could test. > A short rant on the inadaquacy of speedtest and other tests would be > nice. Netanalyzr is the closest thing to a good test these days but it > requires java and is inaccurate above 20mbit. The problem is that no one really wants to supply the large = amount of bandwidth required that everyone can max out their download = long enough for a reasonable test; this is why an often read = recommendation is to use curl or wget to concurrently down or up load = large files from several beefy servers, to actually be able to assess = the local link capacity. The only redeeming feature of seediest and = friends is, that underestimating the available link capacity will lead = to decent latency and lean buffers :). best Sebastian >=20 >>=20 >> NB: In the Details=85 section, we can recommend ways to measure = current link speeds, encourage people to make the measurement during = quiet times, link to the =93Quick test for Bufferbloat=94 page, etc. for = those who want to dig further. >> _______________________________________________ >> Cerowrt-devel mailing list >> Cerowrt-devel@lists.bufferbloat.net >> https://lists.bufferbloat.net/listinfo/cerowrt-devel >=20 >=20 >=20 > --=20 > Dave T=E4ht >=20 > Fixing bufferbloat with cerowrt: = http://www.teklibre.com/cerowrt/subscribe.html > _______________________________________________ > Cerowrt-devel mailing list > Cerowrt-devel@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/cerowrt-devel