// 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));
}
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();
}