From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from bobcat.rjmcmahon.com (bobcat.rjmcmahon.com [45.33.58.123]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 24C603B29D; Wed, 4 Jan 2023 15:02:48 -0500 (EST) Received: from mail.rjmcmahon.com (bobcat.rjmcmahon.com [45.33.58.123]) by bobcat.rjmcmahon.com (Postfix) with ESMTPA id 35DD61B25F; Wed, 4 Jan 2023 12:02:47 -0800 (PST) DKIM-Filter: OpenDKIM Filter v2.11.0 bobcat.rjmcmahon.com 35DD61B25F DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rjmcmahon.com; s=bobcat; t=1672862567; bh=KnCFF04RP7ts7vmOaN2l6+aa5WiMDNYHbSSSaatd5E8=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=CPYS7u6JLV7bKG7bAjBnKqHrBeVKKUWj1vqYK9f7HIx+ZyLwnRP4PuT1ra4Gg66Mm 08F8KQ5c8CzQCCFRnnY6ue0JLDoUo/aD07UYnReY4IeO2a6PxTvYtAnf8TTEroEskC lvHSZxWUl2H5y0d4R2NHILN+0pG7f+0keQLzX2N4= MIME-Version: 1.0 Date: Wed, 04 Jan 2023 12:02:47 -0800 From: rjmcmahon To: jf@jonathanfoulkes.com Cc: Dave Taht , Dave Taht via Starlink , IETF IPPM WG , libreqos , Cake List , Rpm , bloat In-Reply-To: <845161E4-474C-44A9-92D4-1702748A3DA1@jonathanfoulkes.com> References: <845161E4-474C-44A9-92D4-1702748A3DA1@jonathanfoulkes.com> Message-ID: X-Sender: rjmcmahon@rjmcmahon.com Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Subject: Re: [Rpm] the grinch meets cloudflare's christmas present X-BeenThere: rpm@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: revolutions per minute - a new metric for measuring responsiveness List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 04 Jan 2023 20:02:48 -0000 Curious to why people keep calling capacity tests speed tests? A semi at 55 mph isn't faster than a porsche at 141 mph because its load volume is larger. Bob > HNY Dave and all the rest, > > Great to see yet another capacity test add latency metrics to the > results. This one looks like a good start. > > Results from my Windstream DOCSIS 3.1 line (3.1 on download only, up > is 3.0) Gigabit down / 35Mbps up provisioning. Using an IQrouter Pro > (an i5 x86) with Cake set for 710/31 as this ISP can’t deliver > reliable low-latency unless you shave a good bit off the targets. My > local loop is pretty congested. > > Here’s the latest Cloudflare test: > > > > > And an Ookla test run just afterward: > > > > > They are definitely both in the ballpark and correspond to other tests > run from the router itself or my (wired) MacBook Pro. > > Cheers, > > Jonathan > > >> On Jan 4, 2023, at 12:26 PM, Dave Taht via Rpm >> wrote: >> >> Please try the new, the shiny, the really wonderful test here: >> https://speed.cloudflare.com/ >> >> I would really appreciate some independent verification of >> measurements using this tool. In my brief experiments it appears - as >> all the commercial tools to date - to dramatically understate the >> bufferbloat, on my LTE, (and my starlink terminal is out being >> hacked^H^H^H^H^H^Hworked on, so I can't measure that) >> >> My test of their test reports 223ms 5G latency under load , where >> flent reports over 2seconds. See comparison attached. >> >> My guess is that this otherwise lovely new tool, like too many, >> doesn't run for long enough. Admittedly, most web objects (their >> target market) are small, and so long as they remain small and not >> heavily pipelined this test is a very good start... but I'm pretty >> sure cloudflare is used for bigger uploads and downloads than that. >> There's no way to change the test to run longer either. >> >> I'd love to get some results from other networks (compared as usual to >> flent), especially ones with cake on it. I'd love to know if they >> measured more minimum rtts that can be obtained with fq_codel or cake, >> correctly. >> >> Love Always, >> The Grinch >> >> -- >> This song goes out to all the folk that thought Stadia would work: >> https://www.linkedin.com/posts/dtaht_the-mushroom-song-activity-6981366665607352320-FXtz >> Dave Täht CEO, TekLibre, LLC >> _______________________________________________ >> Rpm mailing list >> Rpm@lists.bufferbloat.net >> https://lists.bufferbloat.net/listinfo/rpm > > > _______________________________________________ > Rpm mailing list > Rpm@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/rpm