With ack-filter-aggressive I get results similar to rrul1 in ~10% of the runs, 90% are similar to rrul2.

With ack-filter I haven't managed yet to get a rrul1 result, all of them are similar to rrul2.

Will experiment more today.

George

On Tue, Nov 28, 2017 at 11:01 PM, Dave Taht <dave.taht@gmail.com> wrote:

the astounding figure is dropping ~70% of all packets, and tcp still
works at all.

682411 pkt (dropped 1511579 ...)

is your 2nd result repeatable? What happens with just "ack-filter" not
aggressive?

I keep thinking that a way to coax more performance out of 40GigE+
might be to drop more acks (as correctly as possible) before they even
hit the server.