public QueueTrackingStatistic(string queueName)
{
if (StatisticsCollector.CollectQueueStats)
{
const CounterStorage storage = CounterStorage.LogAndTable;
averageQueueSizeCounter = AverageValueStatistic.FindOrCreate(
new StatisticName(StatisticNames.QUEUES_QUEUE_SIZE_AVERAGE_PER_QUEUE, queueName), storage);
numEnqueuedRequestsCounter = CounterStatistic.FindOrCreate(
new StatisticName(StatisticNames.QUEUES_ENQUEUED_PER_QUEUE, queueName), false, storage);
if (TrackExtraStats)
{
totalExecutionTime = TimeIntervalFactory.CreateTimeInterval(true);
averageArrivalRate = FloatValueStatistic.FindOrCreate(
new StatisticName(StatisticNames.QUEUES_AVERAGE_ARRIVAL_RATE_PER_QUEUE, queueName),
() =>
{
TimeSpan totalTime = totalExecutionTime.Elapsed;
if (totalTime.Ticks == 0)
{
return(0);
}
long numReqs = numEnqueuedRequestsCounter.GetCurrentValue();
return((float)((((double)numReqs * (double)TimeSpan.TicksPerSecond)) / (double)totalTime.Ticks));
}, storage);
}
averageTimeInQueue = AverageValueStatistic.FindOrCreate(new StatisticName(StatisticNames.QUEUES_TIME_IN_QUEUE_AVERAGE_MILLIS_PER_QUEUE, queueName), storage);
averageTimeInQueue.AddValueConverter(Utils.AverageTicksToMilliSeconds);
if (averageTimeInAllQueues == null)
{
averageTimeInAllQueues = AverageValueStatistic.FindOrCreate(new StatisticName(StatisticNames.QUEUES_TIME_IN_QUEUE_AVERAGE_MILLIS_PER_QUEUE, "AllQueues"), storage);
averageTimeInAllQueues.AddValueConverter(Utils.AverageTicksToMilliSeconds);
}
if (totalTimeInAllQueues == null)
{
totalTimeInAllQueues = CounterStatistic.FindOrCreate(
new StatisticName(StatisticNames.QUEUES_TIME_IN_QUEUE_TOTAL_MILLIS_PER_QUEUE, "AllQueues"), false, storage);
totalTimeInAllQueues.AddValueConverter(Utils.TicksToMilliSeconds);
}
}
}