public void LogTestResult(string testName, TestStats stats)
{
if (_logTestResult != null)
{
_logTestResult(testName, _iterations, _concurrency, stats);
}
}
private void LogTestResult(string testName, int iterations, int concurrency, TestStats stats)
{
Program.LogTestToConsole(testName, stats);
if (_RawCsvOutput != TextWriter.Null)
{
_RawCsvOutput.WriteLine("\"{0}\",{1},{2},{3},{4},{5}", testName, iterations, concurrency, stats.Median.TotalMilliseconds, stats.Mean.TotalMilliseconds, stats.StdDev.TotalMilliseconds);
}
_Entries.Add(Tuple.Create(testName, iterations, concurrency, stats));
}
public static void LogTestToConsole(string testName, TestStats stats)
{
Console.WriteLine("{0,-45} {1,6:0.000}ms, {2,6:0.000}ms, {3,6:0.000}ms", testName, stats.Median.TotalMilliseconds, stats.Mean.TotalMilliseconds, stats.StdDev.TotalMilliseconds);
}
public void Run(int iterations, int concurrency)
{
// warmup
foreach (var test in this)
{
var task = test.Iteration(iterations + 1);
task.Wait();
}
//System.Threading.ThreadPool.SetMaxThreads(concurrency*2, concurrency*2);
//System.Threading.ThreadPool.SetMinThreads(concurrency, concurrency);
//System.Threading.ThreadPool.SetMaxThreads(concurrency * 2, concurrency * 2);
if (concurrency == 1)
{
var rand = new Random();
foreach (var test in this.OrderBy(ignore => rand.Next()))
{
var watch = new Stopwatch();
for (int i = 1; i <= iterations; i++)
{
watch.Reset();
watch.Start();
var task = test.Iteration(i);
task.Wait();
watch.Stop();
test.Timings.Add(watch.Elapsed);
}
test.Teardown();
}
}
else if (concurrency > iterations)
{
throw new InvalidOperationException(String.Format("Concurrency ({0}) exceeds iterations ({1})", concurrency, iterations));
}
else
{
Func <Test, int, Task> createTask = async(test, concurrencyIndex) =>
{
var watch = new Stopwatch();
for (var i = concurrencyIndex; i < iterations; i += concurrency)
{
watch.Reset();
watch.Start();
var work = test.Iteration(i);
await work;
watch.Stop();
test.Timings.Add(watch.Elapsed);
}
};
foreach (var test in this)
{
var tasksToWaitOn = Enumerable.Range(1, concurrency).Select(i => createTask(test, i)).ToArray();
Task.WaitAll(tasksToWaitOn);
test.Teardown();
}
}
foreach (var test in this.OrderBy(x => x.Timings.Sum()))
{
var mean = test.Timings.Average();
var testStats = new TestStats()
{
Median = test.Timings.Median(),
Mean = mean,
StdDev = test.Timings.StdDevFrom(mean)
};
_resultLogger(test.Name, testStats);
}
}
