[Cerowrt-devel] [Bloat] Fixing bufferbloat: How about an open letter to the web benchmarkers?

Jesper Dangaard Brouer jbrouer at redhat.com
Fri Sep 12 08:55:13 EDT 2014

On Fri, 12 Sep 2014 08:16:46 -0400 Rich Brown <richb.hanover at gmail.com> wrote:

> On Sep 12, 2014, at 3:17 AM, Jesper Dangaard Brouer <jbrouer at redhat.com> wrote:
> > On Thu, 11 Sep 2014 20:13:19 -0400 Rich Brown <richb.hanover at gmail.com> wrote:
> > 
> > 
> > The 98th percentile latency is of-cause nice, but we should remember to
> > keep our request simple.
> I did try a simple request and got a lukewarm response. You can see the
> gist of my correspondence with the test companies in
> https://lists.bufferbloat.net/pipermail/cerowrt-devel/2014-September/003517.html

Yes, I did notice your write-up.  And thank you for doing so!

When reading it, it strikes me, that you don't directly tell them what
to do; e.g. add a latency test during upload and download.  You say so
indirectly, and points to a website with an implemented solution.  My
point is, it requires work from their side, to lookup a solution and
understand it.

I want something even simpler like add test that: "measures latency
while measuring the speed" (your own formulation from betterspeedtest.sh)

The reason, this email and this requirement have to be passed on from
person reading the mail, to management, to the developers in the company.

> > "Dear speedtest.net/speedof.me please add a latency test, that measures
> > latency during the upload and download test-runs."
> > 
> > That will be the first baby step, don't make it too complicated for
> > them, afterwards we can start explaining if we want min/max or 98th
> > percentile.
> > 
> > They already have a ping facility, which the only run _before_ starting
> > the test run.  Thus, they should be-able to easily adapt their existing
> > "ping" code to measure during the test-runs... give then something they
> > can easily do.

Best regards,
  Jesper Dangaard Brouer
  MSc.CS, Sr. Network Kernel Developer at Red Hat
  Author of http://www.iptv-analyzer.org
  LinkedIn: http://www.linkedin.com/in/brouer
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