Hi Jonathan
Thank you for your reply and insight. You are right about my setup.

Just wondering if you have some insight into why I get significantly better
download (not uplad) throughput by all other methods over cubic, including
bbr. I mean, bbr on the sender side would mean I am supposed to get
improvement on upload. Granted that my poor setup could distort any gains
on upload by bbr, why do I get throughput gains on download?

Thank you for your help
Best
Azin


On Fri, Jan 18, 2019 at 1:27 AM Jonathan Morton <chromatix99@gmail.com>
wrote:

> > On 18 Jan, 2019, at 6:25 am, Azin Neishaboori <
> azin.neishaboori@gmail.com> wrote:
> >
> > My setup is pretty simple. I am on WiFi on my PC, and run flent on an
> Ubuntu VM on a virtual machine, and connect to netperf.bufferbloat.net.
>
> From a technical point of view, that really isn't a "simple" setup.  The
> very fact that you're running Linux in a VM means it probably doesn't have
> direct control of the wifi hardware - rather, the host OS does, and I very
> much doubt that Windows is very intelligent about it.  Then your path
> involves an awful lot of Internet infrastructure on the way to the remote
> server and back.
>
> So your simple prioritised ack is the solution that works, because it's
> the only solution that actually does anything in your setup.
>
>  - Jonathan Morton
>
>