Windows 8.1 CPU utilization weirdness

[Breach]

Hi,

 

I've recently upgraded to 8.1 and see some serious weirdness with regard to the CPU utilization which I havne't seen in 8.0. So, exhibit A:

 

https://dl.dropboxusercontent.com/u/28406605/1.png

https://dl.dropboxusercontent.com/u/28406605/2.png

 

As you see CPU utilisation is reported as 8x% but the logical utilization + the system idle process disagree.

 

Now, let's move to exhibit B:

 

https://dl.dropboxusercontent.com/u/28406605/3.png

https://dl.dropboxusercontent.com/u/28406605/4.png

 

Here system idle is about 12-13% but according to the CPU graph utilisation is 100%. Notice how Resource Manager reports 117% utilization!

 

So something is not right here. Any ideas?

[Breach]

AIDA reports 84% CPU utilization thus I am inclined to think the 8.1 task manager calculates core/total load on the basis of my stock clock speed or some such which, IMHO is a bug. I'm 99% sure this wasn't the case in 8.