I think, the cloudflare test uses a single TCP connection, while Ookla/Fast/… use multiple connections.
That’s probably the difference for you. Christoph > On Jan 4, 2023, at 2:21 PM, David P. Reed via Starlink > <[email protected]> wrote: > > I don't know how to debug this, but the cloudflare speed test really sucks on > my home wired network, compared to others. And also I discovered to my > chagrin that the DSLReports speedtest is now broken, at least in my Chrome > browser. > > The speeds measured by Cloudflare are essentially 1/2 of both Ookla and > Fast.com. > > Cloudflare in my test config gives ~500/10 Mb/sec, with a download latency of > 14.6 msec, upload latency of 11.6. > > Oookla and Fast give ~980/25 Mb/sec, with "latency" being about 11 or 12 msec. > > This difference is observed over a tuned "cake" install on my Linux router, > and the home network is 10 GigE to my workstation from the router, and the > router talks to my DOCSIS cable modem on RCN at 1 GigE, with RCN's product > offering being its "Gig" product. > > Now, I hate using Ookla and getting bombarded with ads! I don't really trust > fast.com, but it used to be OK. > > The real disappointment was that the DSL Reports speed test, which I used to > recommend is so broken. It claims it can't reach any of its 3 selected test > sites, because I may have an "alien script" and suggests my DNS might be > "slow" or my Chrome might have browser malware. > > Now, maybe Chrome has browser malware on my machine. This is troubling to a > serious degree to me, and I will be investigating. > > However, Cloudflare seems to be somewhat flaky to a significant degree. (It > also doesn't seem to push a fast network connection nearly hard enough to > measure lag under load, it seems to me). > > > > On Wednesday, January 4, 2023 2:20pm, [email protected] > said: > > > Send Starlink mailing list submissions to > > [email protected] > > > > To subscribe or unsubscribe via the World Wide Web, visit > > https://lists.bufferbloat.net/listinfo/starlink > > or, via email, send a message with subject or body 'help' to > > [email protected] > > > > You can reach the person managing the list at > > [email protected] > > > > When replying, please edit your Subject line so it is more specific > > than "Re: Contents of Starlink digest..." > > > > > > Today's Topics: > > > > 1. Re: [Rpm] the grinch meets cloudflare's christmas present > > ([email protected]) > > > > > > ---------------------------------------------------------------------- > > > > Message: 1 > > Date: Wed, 4 Jan 2023 14:20:15 -0500 > > From: "[email protected]" <[email protected]> > > To: Dave Taht <[email protected]> > > Cc: bloat <[email protected]>, libreqos > > <[email protected]>, Cake List > > <[email protected]>, Dave Taht via Starlink > > <[email protected]>, Rpm <[email protected]>, > > IETF IPPM WG <[email protected]> > > Subject: Re: [Starlink] [Rpm] the grinch meets cloudflare's christmas > > present > > Message-ID: <[email protected]> > > Content-Type: text/plain; charset="utf-8" > > > > 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: > > > > -------------- next part -------------- > > A non-text attachment was scrubbed... > > Name: CFSpeedTest_Gig35_20230104.png > > Type: image/png > > Size: 379539 bytes > > Desc: not available > > URL: > > <https://lists.bufferbloat.net/pipermail/starlink/attachments/20230104/d89867fe/attachment.png> > > -------------- next part -------------- > > > > > > And an Ookla test run just afterward: > > > > -------------- next part -------------- > > A non-text attachment was scrubbed... > > Name: Speedtest_net_Gig35_20230104.png > > Type: image/png > > Size: 40589 bytes > > Desc: not available > > URL: > > <https://lists.bufferbloat.net/pipermail/starlink/attachments/20230104/d89867fe/attachment-0001.png> > > -------------- next part -------------- > > > > > > 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 > > <[email protected]> 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 > > > > > <image.png><tcp_nup-2023-01-04T090937.211620.LTE.flent.gz>_______________________________________________ > > > Rpm mailing list > > > [email protected] > > > https://lists.bufferbloat.net/listinfo/rpm > > > > > > ------------------------------ > > > > Subject: Digest Footer > > > > _______________________________________________ > > Starlink mailing list > > [email protected] > > https://lists.bufferbloat.net/listinfo/starlink > > > > > > ------------------------------ > > > > End of Starlink Digest, Vol 22, Issue 10 > > **************************************** > > > _______________________________________________ > Starlink mailing list > [email protected] > https://lists.bufferbloat.net/listinfo/starlink
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