/// <summary>
/// ThreadPool Event
/// </summary>
/// <param name="arg"></param>
/// <returns></returns>
private Task ThreadPoolEventProfilerCallback(ThreadPoolEventStatistics arg)
{
// memo: send metrics to datadog or any favor you like.
if (arg.Type == ThreadPoolStatisticType.ThreadPoolWorkerStartStop)
{
DatadogTracing.ThreadPoolEventWorker(arg.ThreadPoolWorker);
_logger.LogInformation($"ThreadPoolStartStop ActiveWrokerThreads {arg.ThreadPoolWorker.ActiveWrokerThreads};");
}
else if (arg.Type == ThreadPoolStatisticType.ThreadPoolAdjustment)
{
DatadogTracing.ThreadPoolEventAdjustment(arg.ThreadPoolAdjustment);
_logger.LogInformation($"ThreadAdjustment Reason {arg.ThreadPoolAdjustment.Reason}; NewWorkerThread {arg.ThreadPoolAdjustment.NewWorkerThreads}; AverageThrouput {arg.ThreadPoolAdjustment.AverageThrouput};");
if (arg.ThreadPoolAdjustment.Reason == 0x07)
{
// special handling for threadPool starvation. This is really critical for .NET (.NET Core) Apps.
DatadogTracing.ThreadPoolStarvationEventAdjustment(arg.ThreadPoolAdjustment);
}
}
return(Task.CompletedTask);
}
