Yes correct.
In addition to yours, I've 2 sockets, so i've node 0 and node 1
For each node I selected only 1,3,5,7,9,11 cpu

but nothing.

-t12 cpu affinity configured. Total speed 240H/s CPU 50%


PS:

Incredible  if I use this:
cpuminer-aes-sse42 -t 6 --cpu-affinity 1,3,5,7,9,11

I get 140H/s with only 5% of total cpu usage