its 1371 kh/s with 32 threads. I just checked with 18 and it produces 762 kh/s . I can see the 4 threads that don't mine from the task manager . The miner on startup shows 36 miner threads started but cpu #32, #33, #34, and #35 are missing and task manager shows only 32 online.
check the pictures below
-t 36
http://prnt.sc/eairvt-t 18
http://prnt.sc/eait62The right thing to try would be to check what @thefix suggested above:
What happens when you run two instances with -t 18
I tried it that is what im saying above. With -t 18 i get half of the hashrate. I tried everything with the -t parameter. I get the most hashrate with the most cores