How to Determine If Your Mac is Stressed-Out - The Mac Observer

How to Determine If Your Mac is Stressed-Out - The Mac Observer: 

So, how do you determine the number of logical CPU cores in your Mac’s processor. The quickest way to find out is to painstakingly type (or copy/paste) at the Terminal prompt the following command exactly as shown: 

sysctl hw.ncpu | awk '{print $2}’

This will return a single number - the number of logical CPU cores.