Add System.Diagnostics based function for getting the CPU load.

ATxDiagnostics/ATxDiagnostics.cs

 using System;
+using System.Diagnostics;
 using System.Management;
 using ATxCommon;
 using NLog;
@@ -24,6 +25,7 @@ namespace ATxDiagnostics
             LogManager.Configuration = logConfig;
 
             Log.Debug(Conv.BytesToString(SystemChecks.GetFreeDriveSpace("C:")));
+            GetCpuCounter();
             /*
             Log.Debug(SystemChecks.GetCpuUsage());
             Log.Debug(SystemChecks.GetCpuUsage());
@@ -74,5 +76,19 @@ namespace ATxDiagnostics
 
             return usageInt32;
         }
+
+        private static void GetCpuCounter() {
+            var counter = new PerformanceCounter("Processor", "% Processor Time", "_Total");
+            var i = 0;
+            while (true) {
+                i++;
+                //Log.Debug("PerformanceCounter reading {1}: {0}", counter.NextValue(), i);
+                var watch = Stopwatch.StartNew();
+                var reading = counter.NextValue();
+                watch.Stop();
+                Console.WriteLine("reading {1} (took {2} ms): {0}", reading, i, watch.ElapsedMilliseconds);
+                System.Threading.Thread.Sleep(250);
+            }
+        }
     }
 }