On Nov 15, 2017, at 9:04 PM, Dave Taht <dave@taht.net> wrote:

Dave Taht <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.