Dual Mining
Random X and ETC mining - one CPU thread is free for GPU mining
It is not necessary to reserve a CPU thread for GPU mining as long as you don't raise the
priority of the CPU miner.
When dual mining the GPU miner process can run at a slightly higher priority than the CPU minier
to reduce scheduling delays. But in my experience I rarely see any impact to GPU mining performance
when a CPU miner is also running full throttle. It depends on both the GPU and CPU algos being mined.
It's never a good idea to increase the priority of CPU miners.
Now to get back on topic, I'm looking forward to seeing some result for the 3990x.