The Performance module in the task bar is nice, but is there a way to get it to actually show or tell the percentage of CPU power being used?  By hovering over the RAM bar and the other one, I get percentages, but hovering over the actual moving graph thing does nothing.  I have been trying to do some tests, and using the included widget in Win 7 for CPU use really does not seem to correspond to the bars in Sonar.  Win widget will show 12%, while the moving vertical bars in sonar are closer to 25-30%, with spikes even higher.
 
Just wondering if I'm missing something in that Sonar CPU meter.

CPU meters. Displays the time it takes to process a buffer full of audio data as a percentage of the maximum time available to process that data and maintain uninterrupted playback. There is one CPU meter for each core in your computer, up to 32 cores. There is some tolerance built into the meter, so it is possible that it will exceed 100% at times (more so during recording than playback).

From manual.

This is probably why there is no relation to your widget reading.

Very helpful.  Thx a bunch.