Activity Monitor: Tech/Visual question.

[Kinneas]

I have a Macbook 13in and I'mviewing the activity monitor more often now to see what processes are more intensive (ie. what makes my fan start to whir )

When I'm on the CPU tab, there are TWO scrolling histograms for CPU usage. One above the other. What do these represent? My theory is that it individually shows each core's load.

Thanks in advance.

 

[NATO]

You're right, each graph is for each core (because you own a MacBook, that's why you see two there).

Something I do a lot is View>Dock Icon>CPU History. This puts those two graphs on the dock icon and once you hide Activity Monitor you've got a handy way of seeing how busy each core is.