On 02/14/2018 12:23 AM, Jonathan Morton wrote: >> On 14 Feb, 2018, at 10:18 am, Toke Høiland-Jørgensen <toke@xxxxxxx> wrote: >> >> Why does the CPU usage go up >7? > Just as a guess, it's generating extra packets which are then laboriously discarded and retransmitted. > > - Jonathan Morton I think for 11n, like ath9k, it might be good enough for 8, but for 11ac could aggregate a little more. Yes, and CPU usage goes up after 6 or 7, might due to it generates extra packets but the physical bus is capping the throughput, so that we can't see much throughput difference after (or maybe my setup is not optimal, assumed we should be seeing around 550-600Mbps for TCP in 11ac), but only the CPU usage increased. -- Ryan Hsu
