[Bloat] grading bloat better

jb justin at dslr.net
Wed Oct 12 20:39:34 EDT 2016


A while ago I changed from mean to median with the reasoning being that one
spike to a crazy level was not representative of bloat but instead
representative of a network stall or other anomaly. Graphs that were nearly
all good samples with one outlier were being unfairly graded poorly.

But this example has the opposite issue - the median of this set of samples
is the first half where everything is ok. Hence the good score. Using a
mean would be correct for this sample.
What should happen is to throw away a couple (max) outliers first, then do
a mean to avoid punishing the results that come in as good but include one
errant measurement.

thanks
-Justin

On Wed, Oct 12, 2016 at 11:16 PM, Dave Taht <dave.taht at gmail.com> wrote:

> This has major bloat happening at the end of the upload test. Which
> worries me - here, at a gbit.
>
> http://www.dslreports.com/speedtest/5284047
>
> --
> Dave Täht
> Let's go make home routers and wifi faster! With better software!
> http://blog.cerowrt.org
> _______________________________________________
> Bloat mailing list
> Bloat at lists.bufferbloat.net
> https://lists.bufferbloat.net/listinfo/bloat
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.bufferbloat.net/pipermail/bloat/attachments/20161013/b5767483/attachment.html>


More information about the Bloat mailing list