Question

I want to measure the cpu usage of each processor.

When I run the following program, I get instance name 2, 3, 0, 1, and _Total. I thought I should get 0, 1, 0,_Total, 1,_Total.

What does the result mean? How to get the total cpu usage of each processor. Not each core?

 class PerfMonitor
{
    static void Main()
    {
        var pc = new PerformanceCounter("Processor", "% Processor Time");
        var cat = new PerformanceCounterCategory("Processor");
        var instances = cat.GetInstanceNames();

        foreach (var s in instances)
        { 
            pc.InstanceName = s;
            Console.WriteLine("instance name is {0}", s);
        }
    }
}

Answer 1

Since Windows sees cores as processors, this is not an easy thing to do. You might start by trying to determine the number of physical CPUs, but it is a pain.