performance tracing using the IDisposable pattern and MS Enterprise Library. usage example: using (new PerformanceLogger("some time consuming routine")) { //do something }

gistfile1.cs

public class PerformanceLogger : IDisposable
{
      private Stopwatch sw;
      private string context;

      public PerformanceLogger(string context)
      {
          this.context = context;
          this.sw = Stopwatch.StartNew();
      }

      public void Dispose()
      {
          StopTrace();
      }

      private void StopTrace()
      {
          this.sw.Stop();
          var ellapsedTime = sw.ElapsedMilliseconds.ToString().PadLeft(5, ' ');
          var message = String.Format("TIME: {0} - CONTEXT: {1}", ellapsedTime, context);
          var logEntry = new LogEntry { 
              Message = message, 
              Severity = TraceEventType.Information, 
              TimeStamp = DateTime.Now
          };
          this.LogPerformance(logEntry);
      }

      private void LogPerformance(LogEntry logEntry)
      {            
          try {
              if (Logger.IsLoggingEnabled())
              {
                  logEntry.Categories = new string[] { "Performance" }; //watch out for the magic string
                  Logger.Write(logEntry);
              }
          } catch (Exception) {
              //ignore errors on logging   
          }            
      }
  }