Prototype for using PerformanceCounter to get CPU load.

ATxService/AutoTx.cs

@@ -43,6 +43,9 @@ namespace ATxService
         private long _txCurFileSize;
         private int _txCurFileProgress;
         private int _waitCyclesBeforeNextTx;
+        public PerformanceCounter CpuCounter;
+        private float _cpuLoad;
+        private readonly float[] _cpuLoadLastReadings = {0F, 0F, 0F, 0F};
 
         private DateTime _lastUserDirCheck = DateTime.MinValue;
 
@@ -72,6 +75,7 @@ namespace ATxService
         private ServiceStatus _status;
 
         private static Timer _mainTimer;
+        private static Timer _loadTimer;
 
         #endregion
 
@@ -82,9 +86,16 @@ namespace ATxService
         /// </summary>
         public AutoTx() {
             InitializeComponent();
+
             SetupFileLogging();
             Log.Info("=".PadLeft(80, '='));
             Log.Info("Attempting to start {0} service...", ServiceName);
+            try {
+                CpuCounter = new PerformanceCounter("Processor", "% Processor Time", "_Total");
+            }
+            catch (Exception ex) {
+                Log.Error("initializing PerformanceCounter failed: {0}", ex.Message);
+            }
             CreateEventLog();
             LoadSettings();
             CreateIncomingDirectories();
@@ -365,6 +376,25 @@ namespace ATxService
 
         #endregion
 
+        private void UpdateCpuLoad(object sender, ElapsedEventArgs elapsedEventArgs) {
+            _loadTimer.Enabled = false;
+            try {
+                Log.Debug("UpdateCpuLoad()");
+                Log.Debug(_cpuLoadLastReadings.Average());
+                Array.ConstrainedCopy(_cpuLoadLastReadings, 1, _cpuLoadLastReadings, 0, 3);
+                // var counter = new PerformanceCounter("Processor", "% Processor Time", "_Total");
+                _cpuLoadLastReadings[3] = CpuCounter.NextValue();
+                Log.Debug(_cpuLoadLastReadings.Average());
+                Log.Debug("UpdateCpuLoad() finished");
+            }
+            catch (Exception ex) {
+                Log.Error("UpdateCpuLoad failed: {0}", ex.Message);
+            }
+            finally {
+                _loadTimer.Enabled = true;
+            }
+        }
+
         #region overrides for ServiceBase methods (start, stop, ...)
 
         /// <summary>
@@ -375,6 +405,10 @@ namespace ATxService
                 _mainTimer = new Timer(_config.ServiceTimer);
                 _mainTimer.Elapsed += OnTimedEvent;
                 _mainTimer.Enabled = true;
+
+                _loadTimer = new Timer(1000);
+                _loadTimer.Elapsed += UpdateCpuLoad;
+                _loadTimer.Enabled = true;
             }
             catch (Exception ex) {
                 Log.Error("Error in OnStart(): {0}", ex.Message);