> On Nov 15, 2017, at 9:04 PM, Dave Taht <dave@taht.net> wrote:
> 
> Dave Taht <dave@taht.net <mailto:dave@taht.net>> writes:
> 
>>> TCP RTT ~= 8ms with default qdisc, throughput ~= 940 Mbit
>>> TCP RTT ~= 4.5ms with ‘cake unlimited’, throughput ~= 920 Mbit
>>> TCP RTT ~= 1ms with ‘cake unlimited lan’, throughput ~= 920 Mbit
> 
> This was with BQL in play? Monitoring BQL's behavior might help.
> 
> I'd also love to know an exact setting for the shaper as a close as
> possible to the underlying bandwidth of ethernet. However, I tend to be
> plagued with

Yes, with BQL (Intel I210 with igb driver on the APU2). An rrul_be test with —socket-stats.