/// <summary>
/// Monitor average response time using a counter having the specified instance name
/// </summary>
/// <param name="counterInstanceName">Performance counter instance name</param>
/// <param name="starttime">the start of the interval for a single sample or response time being averaged</param>
/// <param name="lockType">some type used internally for locking</param>
/// <param name="isMonitoringActive">caller can forward external monitoring control</param>
/// <returns>Current time used as end time for previous sample. Can be used as starttime for next sample</returns>
public static DateTime MonitorAverageResponse(string counterInstanceName, DateTime starttime, System.Type lockType, bool isMonitoringActive)
{
try
{
// access counter in hashlist if it is there, else null
CounterBase counter = (CounterBase)PerformanceCounterFacade.Counters[counterInstanceName];
// allocate counter if needed
AverageCounter rtCounter = (AverageCounter)PerformanceCounterFacade.SetCounter(lockType, ref counter, "Average", counterInstanceName, isMonitoringActive);
if (rtCounter != null)
{
// calculate milliseconds
TimeSpan ts = DateTime.Now - starttime;
long ms = (long)ts.TotalMilliseconds;
// adjust counters
rtCounter.AddSampleValue(ms);
rtCounter.IncrementSampleCount();;
}
// persist static, threadsafe counter (null if perf monitoring off) for reuse by validator instances
PerformanceCounterFacade.Counters[counterInstanceName] = rtCounter;
}
catch (InvalidOperationException ex)
{
}
return(DateTime.Now);
}
/// <summary>
/// Monitor an average value with a counter having the specified instance name
/// </summary>
/// <param name="counterInstanceName">Performance counter instance name</param>
/// <param name="count">the value for a single sample being averaged</param>
/// <param name="lockType">some type used internally for locking</param>
/// <param name="isMonitoringActive">caller can forward external monitoring control</param>
public static void MonitorAverageCount(string counterInstanceName, long count, System.Type lockType, bool isMonitoringActive)
{
try
{
// access counter in hashlist if it is there, else null
CounterBase counter = (CounterBase)PerformanceCounterFacade.Counters[counterInstanceName];
// allocate counter if needed
AverageCounter avgCounter = (AverageCounter)PerformanceCounterFacade.SetCounter(lockType, ref counter, "Average", counterInstanceName, isMonitoringActive);
if (avgCounter != null)
{
// adjust counters
avgCounter.AddSampleValue(count);
avgCounter.IncrementSampleCount();;
}
// persist static, threadsafe counter (null if perf monitoring off) for reuse by validator instances
PerformanceCounterFacade.Counters[counterInstanceName] = avgCounter;
}
catch (Exception ex)
{
NameValueCollection nvc = new NameValueCollection(2);
nvc.Add("Method", "MonitorAverageCount");
nvc.Add("Probable cause", "PerfCounters not registered or wrong category in config file");
new LoggableException(ex, nvc);
}
}
