CPU Multi-Processor Usage This is an example of getting and displaying processor usage for all processors in a system.  It uses the 'undocumented' NtQuerySystemInformation function to gather processor usage information and then does calculations based on the delta of two readings.  I wrote this as an alternative to using my >Performance Counters UDF - specifically, check out >Example # 4: System CPU Usage (by Processor). There is now a new interface, as well as two ways to track CPU u