private static void WriteResultToFile(HypervisorManager manager, string filename)
{
try
{
File.WriteAllText(filename, manager.GetJsonResultString());
}
catch (Exception e)
{
Console.WriteLine($"Error writing profiling result to file {filename}: ", e);
}
}
public static void Profile(int numTestRuns, int numHypervisors = 250, int numVms = 1000, bool writeResultToFile = false)
{
double avgTimeAll = 0;
double avgDevAll = 0;
Console.WriteLine($"Starting {numTestRuns} test runs with {numVms} VMs and {numHypervisors} Hypervisors.");
HypervisorManager hvManager = null;
for (int tr = 0; tr < numTestRuns; tr++)
{
var hypervisors = GenerateHypervisors(numHypervisors);
var vms = GenerateVms(numVms);
hvManager = new HypervisorManager(hypervisors);
double avgTime = 0;
int i = 0;
Console.Write($"\rRun {tr+1} ({((tr+1) * 100) / numTestRuns}%) ");
Stopwatch stopwatch = new Stopwatch();
foreach (var vm in vms)
{
stopwatch.Reset();
stopwatch.Start();
hvManager.AddVm(vm);
stopwatch.Stop();
var ts = stopwatch.Elapsed;
avgTime += ts.TotalMilliseconds;
i++;
}
avgTimeAll += (avgTime / i);
avgDevAll += hvManager.GetAverageDeviation();
}
Console.WriteLine("");
Console.WriteLine($"Average time per Vm: {avgTimeAll / numTestRuns}ms Average deviation: {avgDevAll / numTestRuns}%");
if (writeResultToFile)
{
var filename = Path.Combine("./", RESULT_FILENAME);
Console.WriteLine($"Writing result of last test run to file {filename}");
if (hvManager != null)
{
WriteResultToFile(hvManager, filename);
}
}
}
static void Main(string[] args)
{
// Get default path and filenames from the .config file
_path = ConfigurationManager.AppSettings[CONF_KEY_DEFAULTPATH] ?? "./";
string filenameHypervisor = ConfigurationManager.AppSettings[CONF_KEY_FILENAME_HYPERVISOR] ?? "hypervisor.json";
string filenameVms = ConfigurationManager.AppSettings[CONF_KEY_FILENAME_VMS] ?? "vms.json";
// Read the configuration settings for the profiling mode.
ReadProfilerConfiguration();
if (_isProfilingActive)
{
Profiler.Profile(_numProfilingRuns, _numProfilingHypervisors, _numProfilingVms, _saveProfilingResults);
return;
}
// Process Command-Line arguments
if (!ProcessArgs(args))
{
return;
}
// Import the VMs and Hypervisors from the json files
List <Hypervisor> hypervisors = ReadHypervisors(Path.Combine(_path, filenameHypervisor));
if (hypervisors == null)
{
return;
}
List <Vm> vms = ReadVms(Path.Combine(_path, filenameVms));
if (vms == null)
{
return;
}
var hvManager = new HypervisorManager(hypervisors);
// Distribute the Vms one after another to the Hypervisors.
// If intermediate Results should be logged to the Console, move the 'Console.WriteLine' statement into the foreach-block.
foreach (var vm in vms)
{
hvManager.AddVm(vm);
}
Console.WriteLine("\r\nResult:");
// Log the result to the Console.
Console.WriteLine(hvManager.GetJsonResultString());
}