Re: [Bloat] DSLReports Speed Test has latency measurement built-in

[David Lang <david@lang.hm>]

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As a start, the ping time during the test that shows up in the results page is 
good, but you should show that on the main screen, not just in the results+share 
tab.

it looked like the main test was showing when the upload was stalled, (white 
under the line instead of color), but this didn't show up in the report tab.

I also think that the retransmit stats are probably worth watching and doing 
something with. You are trying to drive the line to full capacity, so some 
drops/retransmts are expected. How many re expected vs how many are showing up?

http://www.dslreports.com/speedtest/320230 (and now you see my pathetic link)

David Lang


On Sun, 19 Apr 2015, jb wrote:

> Date: Sun, 19 Apr 2015 15:26:51 +1000
> From: jb <justin@dslr.net>
> To: Dave Taht <dave.taht@gmail.com>, bloat@lists.bufferbloat.net
> Subject: Re: [Bloat] DSLReports Speed Test has latency measurement built-in
> 
> The graph below the upload and download is what is new.
> (unfortunately you do have to be logged into the site to see this)
> it shows the latency during the upload and download, color coded. (see
> attached image).
>
> In your case during the upload it spiked to ~200ms from ~50ms but it was
> not so bad. During upload, there were no issues with latency.
>
> I don't want to force anyone to sign up, just was making sure not to
> confuse anonymous users with more information than they knew what to do
> with. When I'm clear how to present the information, I'll make it available
> by default, to anyone member or otherwise.
>
> Also, regarding your download, it stalled out completely for 5 seconds..
> Hence the low conclusion as to your actual speed. It picked up to full
> speed again at the end. It basically went
> 40 .. 40 .. 40 .. 40 .. 8 .. 8 .. 8 .. 40 .. 40 .. 40
> which explains why the Latency measurements in blue are not all high.
> A TCP stall? you may want to re-run or re-run with Chrome or Safari to see
> if it is reproducible. Normally users on your ISP have flat downloads with
> no stalls.
>
> thanks
> -Justin
>
>
>
>> On Sun, Apr 19, 2015 at 2:01 PM, Dave Taht <dave.taht@gmail.com> wrote:
>>
>>> What I see here is the same old latency, upload, download series, not
>>> latency and bandwidth at the same time.
>>>
>>> http://www.dslreports.com/speedtest/319616
>>>
>>> On Sat, Apr 18, 2015 at 5:57 PM, Rich Brown <richb.hanover@gmail.com>
>>> wrote:
>>>> Folks,
>>>>
>>>> I am delighted to pass along the news that Justin has added latency
>>> measurements into the Speed Test at DSLReports.com.
>>>>
>>>> Go to: https://www.dslreports.com/speedtest and click the button for
>>> your Internet link. This controls the number of simultaneous connections
>>> that get established between your browser and the speedtest server. After
>>> you run the test, click the green "Results + Share" button to see detailed
>>> info. For the moment, you need to be logged in to see the latency results.
>>> There's a "register" link on each page.
>>>>
>>>> The speed test measures latency using websocket pings: Justin says that
>>> a zero-latency link can give 1000 Hz - faster than a full HTTP ping. I just
>>> ran a test and got 48 msec latency from DSLReports, while ping
>>> gstatic.com gave 38-40 msec, so they're pretty fast.
>>>>
>>>> You can leave feedback on this page -
>>> http://www.dslreports.com/forum/r29910594-FYI-for-general-feedback-on-the-new-speedtest
>>> - or wait 'til Justin creates a new Bufferbloat topic on the forums.
>>>>
>>>> Enjoy!
>>>>
>>>> Rich
>>>> _______________________________________________
>>>> Bloat mailing list
>>>> Bloat@lists.bufferbloat.net
>>>> https://lists.bufferbloat.net/listinfo/bloat
>>>
>>>
>>>
>>> --
>>> Dave Täht
>>> Open Networking needs **Open Source Hardware**
>>>
>>> https://plus.google.com/u/0/+EricRaymond/posts/JqxCe2pFr67
>>> _______________________________________________
>>> Bloat mailing list
>>> Bloat@lists.bufferbloat.net
>>> https://lists.bufferbloat.net/listinfo/bloat
>>>
>>
>>
>