[Cerowrt-devel] [Bloat] [Cake] dslreports is no longer free

[Sebastian Moeller]

Hi Mat,

> On May 27, 2020, at 11:08, Matthew Ford <ford at isoc.org> wrote:
> 
> What's the bufferbloat verdict on https://speed.cloudflare.com/ ?

	Not a verdict per se, but this has potential, but is not there yet.

Pros: Decent reporting of the Download rates including intermediate values
	Decent reporting for the idle latency (I like the box whisker plots, ans the details revealed on mouse-over, as well as the individual samples)

Cons: Upload seems missing
	Latency is only measured for a pre-download idle phase, that is important, but for bufferbloat testing we really need to see the latency-under-load numbers (separately for down- and upload).
	Test duration not configurable. A number of ISP techniques, like power-boost can give higher throughput for a limited amount of time, which often accidentally coincides with typical durations of speedtests*, so being able to confirm bufferbloat remedies at longer test run times is really helpful (nothing crazy, but if a test can run 30-60 seconds instead of just 10-20 seconds that already helps a lot).

Best Regards
	Sebastian



*) I believe this to be accidental, as the duration for "fair" power-boosting are naturally in the same few dozends of seconds range as typical speedtests take, nothing nefarious here.



> 
> Mat
> 
>> On 1 May 2020, at 20:48, Sebastian Moeller <moeller0 at gmx.de> wrote:
>> 
>> Hi Dave,
>> 
>> well, it was a free service and it lasted a long time. I want to raise a toast to Justin and convey my sincere thanks for years of investing into the "good" of the internet. 
>> 
>> Now, the question is which test is going to be the rightful successor? 
>> 
>> Short of running netperf/irtt/iper2/iperf3 on a hosted server, I see lots of potential but none of the tests are really there yet (grievances in now particular order):
>> 
>> OOKLA: speedtest.net.
>> 	Pros: ubiquitious, allows selection of single flow versus multi-flow test, allows server selection
>> 	Cons: only IPv4, only static unloaded RTT measurement, no control over measurement duration
>> 	BUFFERBLOAT verdict: incomplete, maybe usable as load generator
>> 
>> 
>> NETFLIX: fast.com.
>> 	Pros: allows selection of upload testing, supposedly decent back-end, duration configurable
>> 		allows unloaded, loaded download and loaded upload RTT measurements (but reports sinlge numbers for loaded and unloaded RTT, that are not the max)
>> 	Cons: RTT report as two numbers one for the loaded and one for unloaded RTT, time-course of RTTs missing
>> 	BUFFERBLOAT verdict: incomplete, but oh, so close...
>> 
>> 
>> NPERF: nperf.com
>> 	Pros: allows server selection, RTT measurement and report as time course, also reports average rates and static RTT/jitter for Up- and Download
>> 	Cons: RTT measurement for unloaded only, reported RTT static only , no control over measurement duration
>> 	BUFFERBLOAT verdict: incomplete,
>> 
>> 
>> THINKBROADBAND: www.thinkbroadband.com/speedtest
>> 	Pros: IPv6, reports coarse RTT time courses for all three measurement phases
>> 	Cons: only static unloaded RTT report in final results, time courses only visible immediately after testing, no control over measurement duration
>> 	BUFFERBLOAT verdict: a bit coarse, might work for users within a reasonable distance to the UK for acute de-bloating sessions (history reporting is bad though)
>> 
>> 
>> honorable mentioning:
>> 	BREITBANDMESSUNG: breitbandmessung.de
>> 	Pros: query of contracted internet access speed before measurement, with a scheduler that will only start a test when the backend has sufficient capacity to saturate the user-supplied contracted rates, IPv6 (happy-eyeballs)
>> 	Cons: only static unloaded RTT measurement, no control over measurement duration
>> 	BUFFERBLOAT verdict: unsuitable, exceot as load generator, but the bandwidth reservation feature is quite nice.
>> 
>> Best Regards
>> 	Sebastian
>> 
>> 
>>> On May 1, 2020, at 18:44, Dave Taht <dave.taht at gmail.com> wrote:
>>> 
>>> https://www.reddit.com/r/HomeNetworking/comments/gbd6g0/dsl_reports_speed_test_no_longer_free/
>>> 
>>> They ran out of bandwidth.
>>> 
>>> Message to users here:
>>> 
>>> http://www.dslreports.com/speedtest
>>> 
>>> 
>>> -- 
>>> Make Music, Not War
>>> 
>>> Dave Täht
>>> CTO, TekLibre, LLC
>>> http://www.teklibre.com
>>> Tel: 1-831-435-0729
>>> _______________________________________________
>>> Cake mailing list
>>> Cake at lists.bufferbloat.net
>>> https://lists.bufferbloat.net/listinfo/cake
>> 
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