private void monitor(PerfMonLib perfMon)
{
int interval = 5; // seconds
while (!_stopping)
{
PerfData data = perfMon.GetValues();
DateTime now = DateTime.Now;
string timestamp = now.ToString("yyyy-MM-ddTHH:mm:ss") + now.ToString("zzz").Replace(":", "");
string message = "{"
+ CreateJsonItem("device", Environment.MachineName)
+ ","
+ CreateJsonItem("timestamp", timestamp)
+ ","
+ CreateJsonItem("cpu", data.ProcessorUtilization)
+ ","
+ CreateJsonItem("memory", data.AvailableMemoryMB)
+ ","
+ CreateJsonItem("process", data.ActiveProcess)
+ ","
+ CreateJsonItem("interval", interval)
+ "}";
Console.WriteLine(message);
string path = Path.Combine(_dataDir, timestamp.Replace("-", "").Replace(":", "") + ".json");
File.WriteAllText(path, message, _encoding);
Thread.Sleep(interval * 1000);
}
}
public PerfData GetValues()
{
double processorUtilization;
double availableMemoryMB;
StringBuilder activeProcess = new StringBuilder(512);
if (!PdhGetValues(out processorUtilization, out availableMemoryMB, activeProcess, activeProcess.Capacity))
{
string error = PdhGetLastError();
throw new Exception(error);
}
PerfData data = new PerfData();
data.ProcessorUtilization = processorUtilization;
data.AvailableMemoryMB = (int)availableMemoryMB;
if (activeProcess.ToString().Length > 0)
{
data.ActiveProcess = Path.GetFileName(activeProcess.ToString());
}
return(data);
}
