public static async Task Start(int percent, CancellationToken cancellationToken)
{
ThreadPool.SetMaxThreads(MaxThreadCount, 2 * MaxThreadCount);
ThreadPool.SetMinThreads(MinThreadCount, 2 * MinThreadCount);
if (percent < 0 || percent > 100)
{
throw new InvalidOperationException("Percent must be in a diapazone [0..100]!");
}
using (var cpuCounter = ProcessCpuCounter.GetPerfCounterForProcessId(Process.GetCurrentProcess().Id))
{
while (/*!cancellationToken.IsCancellationRequested*/ true)
{
var cpuValue = cpuCounter.NextValue();
Console.WriteLine($"CPU USAGE: {cpuValue}: {percent}!");
if (cpuValue > percent)
{
Console.WriteLine($"CPU BOUNDS EXCEEDED: {cpuValue}: {percent}!");
while (_currentThreadCount > MinThreadCount && cpuValue > percent)
{
var delta = (int)(0.1 * _currentThreadCount);
delta = delta > 1 ? delta : 1;
_currentThreadCount -= delta;
_currentThreadCount = _currentThreadCount > MinThreadCount ? _currentThreadCount : MinThreadCount;
ThreadPool.SetMaxThreads(_currentThreadCount, 2 * _currentThreadCount);
Thread.Sleep(500);
cpuValue = cpuCounter.NextValue();
}
}
else if (cpuCounter.NextValue() < 0.5 * percent)
{
Console.WriteLine($"CPU IS UNDERUSED: {cpuValue}: {percent}!");
while (_currentThreadCount > MinThreadCount && cpuCounter.NextValue() < percent)
{
var delta = (int)(0.1 * _currentThreadCount);
delta = delta > 1 ? delta : 1;
_currentThreadCount += delta;
_currentThreadCount = _currentThreadCount < MaxThreadCount ? _currentThreadCount : MaxThreadCount;
ThreadPool.SetMaxThreads(_currentThreadCount, 2 * _currentThreadCount);
Thread.Sleep(500);
cpuValue = cpuCounter.NextValue();
}
}
Console.WriteLine($"CURRENT THREAD COUNT: {_currentThreadCount}");
Thread.Sleep(15000);
}
}
}
internal UiProcess([JetBrains.Annotations.NotNull] Process process)
{
_process = process;
try
{
Path = _process.MainModule.FileName;
}
catch (Exception)
{
Path = "";
}
try
{
_cpuCounter = ProcessCpuCounter.GetPerfCounterForProcessId(_process.Id);
_cpuCounter.NextValue();
}
catch (Exception)
{
}
}
private static void Main(string[] args)
{
var logger = NLog.LogManager.GetCurrentClassLogger();
logger.Info("Start");
var processCpuCounter = new ProcessCpuCounter();
if (!long.TryParse(ConfigurationManager.AppSettings["intervalMilliSecond"], out var intervalMilliSecond))
{
intervalMilliSecond = 20 * 1000;
}
var applicationName = ConfigurationManager.AppSettings["Client"];
try
{
var rc = HostFactory.Run(x =>
{
x.Service <MonitorService>(s =>
{
s.ConstructUsing(name => new MonitorService(processCpuCounter, applicationName, intervalMilliSecond));
s.WhenStarted(tc => tc.Start());
s.WhenStopped(tc => tc.Stop());
});
x.RunAsLocalSystem();
x.SetDescription("Prototy application cpu monitor");
x.SetDisplayName("Cpu monitor");
x.SetDisplayName("CpuMonitorUsages");
});
var exitCode = (int)Convert.ChangeType(rc, rc.GetTypeCode());
Environment.ExitCode = exitCode;
}
catch (Exception ex)
{
logger.Error(ex, "Error in start");
}
logger.Info("Finish");
}