I believe you did think about how to show multi core of CPUs in "top" command. Don't amaze :D
In fact, "top" only shows CPU usage as a percentage of a single CPU by default. Luckily, you can change this by pressing "1" to show break the CPU usage per CPU.
Easy to understand, easy to do.
top - 03:35:08 up 48 days, 22:30, 2 users, load average: 104.92, 91.69,...