Incorrect process utilization from System health extended events?
Values for disk and processor % counters that go over 100% Should be divided by the number of processors or disks present in the system.  So 100% means it is using 100% of one processor. 250% would mean it's using two and half processors. So if it's reporting 120%, see if that is the equivalent of 120 / &lt;number of processors&gt;. 

Note that the latest change to tigertools was June 2018. You might check out sqlwatch.io as it appears to be a much more active project.

See social.msdn.microsoft.com/Forums/sqlserver/en-US/… and just change it to TOP(1) to get the current SQL CPU usage.

– Tony Hinkle