CPU Sometimes Only 1 of the 2 cores is shown to be working in Htop.

[TuxInAGalaxy]

Hi Guys I made a video showing something I found weird.  I know this is the linux lite forums, and it is currently the Linux distro I'm using.  But in the videos I had to bring up two other distros to make the point.  I'm not sure how to search for this issues.  That's why I'm posting it this way. 

They are about how sometimes it appears that I loose one half of my processor.  It happened under Manjaro xfce, never happened under Mint Xfce.  And now that I switched to Linux lite 2.6 xfce, it's happening again.  If you guys know anything about this, please let me know. 

http://www.youtube.com/watch?v=VBskhGijJDM

http://www.youtube.com/watch?v=GvKm7RZPDFA