Jarvee CPU usage per account?

Everyone talks a lot about the ram usage for Jarvee (10-20 accounts per gig of ram is the general guideline).

What are the requirements for CPU and SSD usage per 100 accounts?

That is such an open ended question it is hard to answer. This all really depends on your box. I recommend you just try it and post the results here. Then you are actually contributing something to the community.