// HDD/SSD intensive, beware
public static void Run()
{
HistogramAggregator aggregator = new HistogramAggregator()
.Add(new TimeDimension(TimeSpan.FromSeconds(2)))
.Add(new CountMetric())
.Add(new TransactionsPerSecMetric());
HistogramAggregator aggregagorOriginal = new HistogramAggregator()
.Add(new TimeDimension(TimeSpan.FromSeconds(2)))
.Add(new CountMetric())
.Add(new TransactionsPerSecMetric());
StrategyBuilder strategy = new StrategyBuilder()
.SetScenario <BlankScenario>()
.SetThreading(new FixedThreadCount(3))
.SetLimit(new TimeLimit(TimeSpan.FromSeconds(5)))
.SetAggregator(new JsonStreamAggregator("Raw.json"), aggregagorOriginal);
strategy.Build().Run();
JsonStreamAggregator.Replay("Raw.json", aggregator);
Console.WriteLine(JsonConvert.SerializeObject(aggregagorOriginal.BuildResultsObjects(), Formatting.Indented));
Console.WriteLine(JsonConvert.SerializeObject(aggregator.BuildResultsObjects(), Formatting.Indented));
}
// All IAggregator implementations receive un-aggregated raw measurements (later raw-data) from workers.
// - (TODO: More info in IAggregator customization, But IAggregator ir pretty self explanatory anyway :))
// Main idea behind Raw-Data is that one gets un-aggregated measurements in IResult form
// and one can do anything with it, preferably post-load-test.
//
//
// Having this unlocks few advantages:
// * Save this raw-data somewhere(file on disk, array in memory) and do any aggregations after the test.
// - I personally persist raw-data from all of the tests I do,
// because one will never know what aggregation might be needed until one runs the test and sees initial results.
// - There is a RnD JsonStreamAggregator which saves to JSON array file. Though it can take up some space on disk as JSON has lots of overhead.
// * Or one can write own custom specialized aggregation ignoring provided HistogramAggregator totally.
//
//
// This demo contains:
// * Load-test with one aggregation:
// - [Tools nuget: JsonStreamAggregator] Write data to raw.json file for later aggregation
// * Replay of raw measurements after the test and do some more aggregating post-load-test.
// - Two histogram aggregators: Timeline and KPI.
// - One StreamAggregator instance which gives IEnumerable of IResult's for custom inline aggregation.
public static void Run()
{
// JsonStreamAggregator dumps everything it receives to file.
JsonStreamAggregator jsonAggregator = new JsonStreamAggregator("raw.json");
StrategyBuilder builder = new StrategyBuilder()
.AddLimit(new TimeLimit(TimeSpan.FromSeconds(4)))
.SetThreading(new FixedThreadCount(4))
.SetScenario(new SleepingScenarioFactory(TimeSpan.FromMilliseconds(100))) // Use scenario from common which sleeps every iteration
.SetAggregator(jsonAggregator); // Register JsonAggregator to be only one to receive results
// A quick run
builder.Build().Run();
// Now lets do actual aggregation post testing.
// First - just configure HistogramAggregator or any other aggregator in same way one would do for the live test.
HistogramAggregator histogramTimeline = new HistogramAggregator()
.Add(new TimeDimension(TimeSpan.FromSeconds(1)))
.Add(new CountMetric())
.Add(new GlobalTimerMinValueMetric())
.Add(new GlobalTimerMaxValueMetric())
.Add(new GlobalTimerPeriodMetric());
HistogramAggregator histogramKpi = new HistogramAggregator()
.Add(new CountMetric())
.Add(new GlobalTimerMinValueMetric())
.Add(new GlobalTimerMaxValueMetric())
.Add(new GlobalTimerPeriodMetric());
// Lets define another more specialized aggregation just for lols.
TimeSpan lastIterationEnded = TimeSpan.Zero;
StreamAggregator streamAggregator = new StreamAggregator(
results =>
{
lastIterationEnded = results.Max(r => r.IterationFinished);
}
);
// now just replay saved raw-data stream to those later-defined aggregations.
JsonStreamAggregator.Replay("raw.json", histogramTimeline, histogramKpi, streamAggregator);
Console.WriteLine($"StreamAggregator, last iteration finished: {lastIterationEnded:g}");
Console.WriteLine("---------------- Histogram KPI -----------");
Console.WriteLine(JsonConvert.SerializeObject(histogramKpi.BuildResultsObjects(), Formatting.Indented));
Console.WriteLine("---------------- Histogram timeline -----------");
Console.WriteLine(JsonConvert.SerializeObject(histogramTimeline.BuildResultsObjects(), Formatting.Indented));
}
// ***
private static void AggregateFromMultipleSources()
{
IEnumerable <ReplayResult <object> > pc1 = JsonStreamAggregator.Load <object>("masterdata.json");
IEnumerable <ReplayResult <object> > pc2 = JsonStreamAggregator.Load <object>("masterdata.json");
IEnumerable <ReplayResult <object> > merged = pc1.Concat(pc2);
HistogramAggregator aggregator = new HistogramAggregator()
.Add(new CountMetric())
.Add(new TransactionsPerSecMetric());
StreamAggregator.Replay(merged);
Console.WriteLine("## Merged demo ##");
Console.WriteLine(JsonConvert.SerializeObject(aggregator.BuildResultsObjects(), Formatting.Indented));
Console.ReadKey();
}
static void Main()
{
ReadmeDemo.Run();
return;
HistogramAggregator histo = new HistogramAggregator();
histo
.Add(new TimeDimension(TimeSpan.FromSeconds(1)))
.Add(new CountMetric())
.Add(new AvgDurationMetric())
.Add(new PercentileMetric(0.95));
JsonStreamAggregator.Replay("d:\\test.stream.json", histo);
}
public static void Aggregate()
{
// Feature disabled?
if (!File.Exists("masterdata.json"))
{
return;
}
// Any random aggregator
HistogramAggregator aggregator = new HistogramAggregator()
.Add(new FuncDimension("Created Threads", i => i.CreatedThreads.ToString()))
.Add(new CountMetric());
// [TUserData] - Type of UserData object in your tests (If not using it, leave object)
// Correct type is required to prevent deserialization problems.
JsonStreamAggregator.Replay <object>("masterdata.json", aggregator);
Console.WriteLine("## JsonStreamAggregator demo ##");
Console.WriteLine(JsonConvert.SerializeObject(aggregator.BuildResultsObjects(), Formatting.Indented));
Console.ReadKey();
}
public static void Run()
{
// LoadRunnerParameters used to configure on how load test will execute.
LoadRunnerParameters loadRunnerParameters = new LoadRunnerParameters
{
Limits = new ExecutionLimits
{
// Maximum LoadTest duration threshold, after which test is stopped
MaxDuration = TimeSpan.FromSeconds(30),
// Maximum executed iterations count threshold, after which test is stopped
MaxIterationsCount = Int32.MaxValue,
// Once LoadTest execution finishes because of [maxDuration] or [maxIterationsCount] limit
// coordinating thread will wait [FinishTimeout] amount of time before
// terminating them with Thread.Abort()
//
// Aborted threads won't get the chance to call IterationTearDown() or ScenarioTearDown()
// neither it will broadcast TestContextResultReceived() to aggregators with the state as it is after abort.
FinishTimeout = TimeSpan.FromSeconds(60)
},
// [ISpeedStrategy] defines maximum allowed load by dampening executed Iterations per second count
// * Other existing version of [ISpeedStrategy]
// - IncremantalSpeed(initialRequestsPerSec: 1.0, increasePeriod: TimeSpan.FromSeconds(10), increaseStep: 3.0)
SpeedStrategy = new FixedSpeed(maxIterationsPerSec: Double.MaxValue),
//[IThreadingStrategy] defines allowed worker thread count
// * SemiAutoThreading initializes [minThreadCount] at begining
// It will be increased if not enough threads are available to reach [ISpeedStrategy] limits
ThreadingStrategy = new IncrementalThreadCount(15, TimeSpan.FromSeconds(10), 15)
};
// Initialize aggregator
string[] ignoredCheckpoints =
{
Checkpoint.IterationSetupCheckpointName,
Checkpoint.IterationStartCheckpointName,
Checkpoint.IterationTearDownCheckpointName
};
HistogramAggregator histogramAggregator = new HistogramAggregator()
.Add(new TimeDimension(TimeSpan.FromSeconds(10)))
.Add(new MinDurationMetric(ignoredCheckpoints))
.Add(new AvgDurationMetric(ignoredCheckpoints))
.Add(new MaxDurationMetric(ignoredCheckpoints))
.Add(new PercentileMetric(new[] {0.5, 0.8, 0.9, 0.95, 0.99}, ignoredCheckpoints))
.Add(new CountMetric(ignoredCheckpoints))
.Add(new ErrorCountMetric())
.Add(new FuncMetric<int>("Created Threads", 0, (i, result) => result.CreatedThreads))
.Alias($"Min: {Checkpoint.IterationEndCheckpointName}", "Min (ms)")
.Alias($"Avg: {Checkpoint.IterationEndCheckpointName}", "Avg (ms)")
.Alias($"Max: {Checkpoint.IterationEndCheckpointName}", "Max (ms)")
.Alias($"50%: {Checkpoint.IterationEndCheckpointName}", "50% (ms)")
.Alias($"80%: {Checkpoint.IterationEndCheckpointName}", "80% (ms)")
.Alias($"90%: {Checkpoint.IterationEndCheckpointName}", "90% (ms)")
.Alias($"95%: {Checkpoint.IterationEndCheckpointName}", "95% (ms)")
.Alias($"99%: {Checkpoint.IterationEndCheckpointName}", "99% (ms)")
.Alias($"Count: {Checkpoint.IterationEndCheckpointName}", "Success: Count")
.Alias($"Errors: {Checkpoint.IterationSetupCheckpointName}", "Errors: Setup")
.Alias($"Errors: {Checkpoint.IterationStartCheckpointName}", "Errors: Iteration")
.Alias($"Errors: {Checkpoint.IterationTearDownCheckpointName}", "Errors: Teardown");
JsonStreamAggregator _jsonStreamAggregator = new JsonStreamAggregator(() => DateTime.Now.ToString("HH_mm_ss__ffff") + ".json");
//TotalsResultsAggregator resultsAggregator = new TotalsResultsAggregator();
// Initializing LoadTest Client
//LoadRunnerEngine loadRunner = LoadRunnerEngine.Create<TestScenario>(loadRunnerParameters, histogramAggregator, _jsonStreamAggregator);
LoadRunnerUi loadRunnerUi = LoadRunnerUi.Create<TestScenario>(loadRunnerParameters, histogramAggregator, _jsonStreamAggregator);
Application.Run(loadRunnerUi);
return;
// Run test (blocking call)
//loadRunner.Run();
//loadRunner.RunAsync();
//Console.WriteLine("Async started");
//loadRunner.Wait();
//object defaultResults = histogramAggregator.BuildResultsObjects();
//Console.WriteLine(JsonConvert.SerializeObject(defaultResults, Formatting.Indented));
//Console.ReadKey();
}
public static void Run()
{
// LoadRunnerParameters initializes defaults shown below
LoadRunnerParameters loadRunnerParameters = new LoadRunnerParameters
{
Limits = new ExecutionLimits
{
// Maximum LoadTest duration threshold, after which test is stopped
MaxDuration = TimeSpan.FromSeconds(30),
// Maximum executed iterations count threshold, after which test is stopped
MaxIterationsCount = Int32.MaxValue,
// Once LoadTest execution finishes because of [maxDuration] or [maxIterationsCount] limit
// coordinating thread will wait [FinishTimeout] amount of time before
// terminating them with Thread.Abort()
//
// Aborted threads won't get the chance to call IterationTearDown() or ScenarioTearDown()
// neither it will broadcast TestContextResultReceived() to aggregators with the state as it is after abort.
FinishTimeout = TimeSpan.FromSeconds(60)
},
// [ISpeedStrategy] defines maximum allowed load by dampening executed Iterations per second count
// * Other existing version of [ISpeedStrategy]
// - IncremantalSpeed(initialRequestsPerSec: 1.0, increasePeriod: TimeSpan.FromSeconds(10), increaseStep: 3.0)
SpeedStrategy = new FixedSpeed(maxIterationsPerSec: Double.MaxValue),
//[IThreadingStrategy] defines allowed worker thread count
// * SemiAutoThreading initializes [minThreadCount] at begining
// It will be increased if not enough threads are available to reach [ISpeedStrategy] limits
ThreadingStrategy = new IncrementalThreadCount(15, TimeSpan.FromSeconds(10), 15)
};
// Initialize aggregator
string[] ignoredCheckpoints =
{
Checkpoint.IterationSetupCheckpointName,
Checkpoint.IterationStartCheckpointName,
Checkpoint.IterationTearDownCheckpointName
};
HistogramAggregator histogramAggregator = new HistogramAggregator()
.Add(new TimeDimension(TimeSpan.FromSeconds(10)))
.Add(new MinDurationMetric(ignoredCheckpoints))
.Add(new AvgDurationMetric(ignoredCheckpoints))
.Add(new MaxDurationMetric(ignoredCheckpoints))
.Add(new PercentileMetric(new[] { 0.5, 0.8, 0.9, 0.95, 0.99 }, ignoredCheckpoints))
.Add(new CountMetric(ignoredCheckpoints))
.Add(new ErrorCountMetric())
.Add(new FuncMetric <int>("Created Threads", 0, (i, result) => result.CreatedThreads))
.Alias($"Min: {Checkpoint.IterationEndCheckpointName}", "Min (ms)")
.Alias($"Avg: {Checkpoint.IterationEndCheckpointName}", "Avg (ms)")
.Alias($"Max: {Checkpoint.IterationEndCheckpointName}", "Max (ms)")
.Alias($"50%: {Checkpoint.IterationEndCheckpointName}", "50% (ms)")
.Alias($"80%: {Checkpoint.IterationEndCheckpointName}", "80% (ms)")
.Alias($"90%: {Checkpoint.IterationEndCheckpointName}", "90% (ms)")
.Alias($"95%: {Checkpoint.IterationEndCheckpointName}", "95% (ms)")
.Alias($"99%: {Checkpoint.IterationEndCheckpointName}", "99% (ms)")
.Alias($"Count: {Checkpoint.IterationEndCheckpointName}", "Success: Count")
.Alias($"Errors: {Checkpoint.IterationSetupCheckpointName}", "Errors: Setup")
.Alias($"Errors: {Checkpoint.IterationStartCheckpointName}", "Errors: Iteration")
.Alias($"Errors: {Checkpoint.IterationTearDownCheckpointName}", "Errors: Teardown");
JsonStreamAggregator _jsonStreamAggregator = new JsonStreamAggregator(() => DateTime.Now.ToString("HH_mm_ss__ffff") + ".json");
//TotalsResultsAggregator resultsAggregator = new TotalsResultsAggregator();
// Initializing LoadTest Client
//LoadRunnerEngine loadRunner = LoadRunnerEngine.Create<TestScenario>(loadRunnerParameters, histogramAggregator, _jsonStreamAggregator);
LoadRunnerUi loadRunnerUi = LoadRunnerUi.Create <TestScenario>(loadRunnerParameters, histogramAggregator, _jsonStreamAggregator);
Application.Run(loadRunnerUi);
return;
// Run test (blocking call)
//loadRunner.Run();
//loadRunner.RunAsync();
//Console.WriteLine("Async started");
//loadRunner.Wait();
//object defaultResults = histogramAggregator.BuildResultsObjects();
//Console.WriteLine(JsonConvert.SerializeObject(defaultResults, Formatting.Indented));
//Console.ReadKey();
}
