I have been mining on my CPU when I used Windows 10 and I was getting ~570H/s mining CryptonightV7
I have since moved over to Linux and I am only getting around 300H/s at very best.
I am wondering why this could be.
Ubuntu 18.04 - Stock Kernel
AMD Ryzen 1600 @ 3.7Ghz
UEFI has CB15 Bias enabled