public static void Main(string[] args)
{
Console.WriteLine("######## Starting at " + DateTime.UtcNow);
// supported scenarios:
// --------------------
// 0: all
// 1: start threads with specific callstacks in another appdomain
// 2: start threads with generic type and method having long parameters list in callstack
// 3: start threads that sleep/task.delay for 10s, 20s, 30s, 40s every minute
// 4: start a thread to compute pi at a certain precision (high CPU usage)
// 5: start n threads computing fibonacci
// 6: start n threads sleeping
// 7: start n threads doing async calls with CPU consumption along the way
Console.WriteLine($"{Environment.NewLine}Usage:{Environment.NewLine} > {Process.GetCurrentProcess().ProcessName} [--service] [--iterations <number of iterations to execute>] [--scenario <0=all 1=computer 2=generics 3=wall time 4=pi computation>] [--timeout <duration in seconds> | --run-infinitely]");
Console.WriteLine();
EnvironmentInfo.PrintDescriptionToConsole();
ParseCommandLine(args, out TimeSpan timeout, out bool runAsService, out Scenario scenario, out int iterations, out int nbThreads);
// This application is used for several purposes:
// - execute a processing for a given duration (for smoke test)
// - execute a processing several times (for runtime test)
// - never stop (for reliability environment)
// - as a service
// - interactively for debugging
var computerService = new ComputerService();
if (runAsService)
{
computerService.RunAsService(timeout, scenario);
}
else
{
// collect CLR metrics that will be saved into a json file
// if SIGNALFX_PROFILING_METRICS_FILEPATH is set
using (var collector = new MetricsCollector())
{
if (iterations > 0)
{
Console.WriteLine($" ########### The application will run scenario {scenario} {iterations} times with {nbThreads} thread(s).");
computerService.Run(scenario, iterations, nbThreads);
}
else
if (timeout == TimeSpan.MinValue)
{
Console.WriteLine($" ########### The application will run interactively because no timeout was specified or could be parsed. Number of Threads: {nbThreads}.");
computerService.StartService(scenario, nbThreads);
Console.WriteLine($"{Environment.NewLine} ########### Press enter to finish.");
Console.ReadLine();
computerService.StopService();
Console.WriteLine($"{Environment.NewLine} ########### Press enter to terminate.");
Console.ReadLine();
}
else
{
Console.WriteLine($" ########### The application will run non-interactively for {timeout} and will stop after that time. Number of Threads: {nbThreads}.");
computerService.StartService(scenario, nbThreads);
Thread.Sleep(timeout);
computerService.StopService();
}
}
Console.WriteLine($"{Environment.NewLine} ########### Finishing run at {DateTime.UtcNow}");
}
}
protected override void OnStop()
{
_computerService.StopService();
base.OnStop();
}