WP Multisite Memory Usage & Optimization

Hi there,

Is there a WP plugin available to see which WordPress processes are running at any one time and how much memory is been used for each process?

And if not, how can I access the logs from CPanel?

Also, can anyone recommend the amount of RAM that is best to have installed on a WHM server to ensure that WP Multisite runs efficiently. (ie should it be 2GB, 4GB, 6GB etc?)

I do understand that web-traffic will dictate this number, so please advise what amount of RAM is needed if you have 100 visitors at a time. I can then get an idea of what the best “starting-position” is.

Many thanks.