High memory usage

I have just installed version 7.2.0 64 bit on a dual core with 4GB memory. Still in testing and not protecting my network yet. I am curious of the high memory usage just sitting there. If 45% memory is needed just to be idle, I am afraid 4GB RAM isn’t going to be enough when deployed. Is this normal or am I not looking at this correctly?

some of that 1.5 gb could be “cached” or “buffered” :wink:

See High memory consumption