/// <summary>
/// Executes the task
/// </summary>
/// <param name="task">The task to run</param>
/// <param name="settings">The settings for the profiler</param>
/// <returns>The resulting collection of the executions</returns>
public override IProfilerResult Execute(ITask task, ProfilerSettings settings)
{
lock (_threads)
{
for (int i = 0; i < _threadCount; i++)
{
var thread = ThreadHelper.QueueTask(i, threadIndex =>
{
var worker = new Worker();
var p = worker.Run(task, settings);
return(p);
});
System.Diagnostics.Trace.WriteLine($"MeasureMap - Start thread {thread.Id}");
_threads.Add(thread);
}
foreach (var thread in _threads)
{
thread.Start();
}
}
while (CountOpenThreads() > 0)
{
System.Threading.Tasks.Task.WaitAll(GetAwaitableThreads(), -1, CancellationToken.None);
}
var results = _threads.Select(s => s.Result);
var collectîon = new ProfilerResult();
foreach (var result in results)
{
collectîon.Add(result);
}
return(collectîon);
}
/// <summary>
/// Starts the profiling session
/// </summary>
/// <returns>The resulting profile</returns>
public ProfilerResult RunSession()
{
if (_task == null)
{
throw new ArgumentNullException($"task", $"The Task that has to be processed is null or not set.");
}
// warmup
Trace.WriteLine($"Running Task once for warmup on Performance Analysis Benchmark");
_task();
var profile = new ProfilerResult();
var stopwatch = new Stopwatch();
SetProcessor();
SetThreadPriority();
ForceGarbageCollector();
Trace.WriteLine($"Running Task for {_iterations} iterations for Perfomance Analysis Benchmark");
profile.InitialSize = GC.GetTotalMemory(true);
for (int i = 0; i < _iterations; i++)
{
var initial = GC.GetTotalMemory(true);
stopwatch.Reset();
stopwatch.Start();
_task();
stopwatch.Stop();
var after = GC.GetTotalMemory(false);
ForceGarbageCollector();
var afterCollect = GC.GetTotalMemory(true);
profile.Add(new ProfileIteration(stopwatch.ElapsedTicks, stopwatch.Elapsed, initial, after, afterCollect));
}
ForceGarbageCollector();
profile.EndSize = GC.GetTotalMemory(true);
foreach (var condition in _conditions)
{
if (!condition(profile))
{
throw new AssertionException($"Condition failed: {condition}");
}
}
Trace.WriteLine($"Running Task for {_iterations} iterations with an Average of { profile.AverageMilliseconds} Milliseconds");
return profile;
}
