On a my GTX 1050ti on Ubuntu 16.04, after 3 month of development work, i get 105 Mkey/s with -p 512 and 112 MKey/sec with -p 768.
I get 125 MKey/sec when the program run with nvprof but I don't know why for the moment... it's +50% from 83 MKey/sec and +100% from 64 MKey/sec !