I don't really understand your question. Fundamentally a process is either on the CPU, or not. There's nothing between 0 and 100% CPU usage. CPU utilization

I don't really understand your question. Fundamentally a process is either on the CPU, or not. There's nothing between 0 and 100% CPU usage. CPU utilization only makes sense with a windowing function, for example in 90% of samples over the last second, some process was on the CPU. I think what you want for your application, if I understand any of it correctly, is the time spent by a runnable process waiting to get scheduled on a CPU. That would indicate contention. If a process runs immediately when it becomes runnable, then there's no contention, no matter what the windowed utilization looks like.