DSLReports new speedtest also checks for bufferbloat.

Most speedtests just do a single ping test before checking the download and upload speeds, but the new speedtest from DSLreports constantly checks latency during the test, providing a nice graph of a connection's responsiveness under load.

Here's two tests i took earlier:

With fq_codel and SQM scripts active on my router

Without fq_codel and SQM scripts active

Hopefully more speedtests (including TBB's) will move towards including this important measurement in their tests.

Edited by deleted (Thu 30-Apr-15 16:16:45)

We've been collecting the data on buffer bloat for a number of months through our tester,

Plan was to simply the difference between idle and when downloading and when uploading, rather than another graph.

Being meaning to blog about it, but the coverage data updates and lots of other stuff has taken precedence. Have data from an ISP wide perspective already and makes for interesting viewing. In case someone thinks I'm bluffing here is the March 2015 data just posted onto twitter https://twitter.com/thinkbroadband/status/5938192551...

The difference between providers with respect to upload and download performance is interesting.

http://www.thinkbroadband.com/speedtest.html

Will report a grade of buffer bloat for down and up directions.

Seems my router modem combination, DSL-N55U and Billion 7800 bridge is well bloated, I get a F on buffer bloat.

Which means if your latency was 40ms to get an F it had risen to six times that.

Grades were based on what looked like a nice answer from the ISP data. Time to see how it beds in, and get some FAQ entries up, Should have April data tomorrow to talk about too.

Results

http://www.dslreports.com/speedtest/397121">

I get an A up and down

In reply to a post by MrSaffron:

http://www.thinkbroadband.com/speedtest.html

Will report a grade of buffer bloat for down and up directions.

I get B down and A up, which is about what I expect based on performance. Unfortunately, this tester seems to default to IPv6 if available, which in my case is a tunnel. Is there some way to force an IPv4 test other than disabling IPv6 on my computer or router?

Is there any intention to include the 'bloat grades' in the shareable results?

In reply to a post by MrSaffron:

http://www.thinkbroadband.com/speedtest.html

Will report a grade of buffer bloat for down and up directions.

Am I missing something or does this only work on Windows?

Can't see any reference to buffer bloat grades in either Linux (Firefox) or OS X (Safari & Chromium)

In reply to a post by billford:

Can't see any reference to buffer bloat grades in either Linux (Firefox) or OS X (Safari & Chromium)

Log out of the main website before loading the speed test. That will load the HTML5 test.