On Sun, 19 Apr 2015, David Lang wrote:
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.
Thinking about it, how about a graph showing the ratio of latency under test to
the initial idle latency along with the bandwidth number?
David Lang
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 <[email protected]>
To: Dave Taht <[email protected]>, [email protected]
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 <[email protected]> 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 <[email protected]>
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
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Dave Täht
Open Networking needs **Open Source Hardware**
https://plus.google.com/u/0/+EricRaymond/posts/JqxCe2pFr67
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