public void HistogramTimingTest()
{
var sink = new DictionarySink();
var clock = new DummyClock("12:00:00.000");
var windowSize = TimeSpan.FromSeconds(1);
var flushInterval = TimeSpan.FromSeconds(1);
var metrics = new MetricsCollector(sink, clock, windowSize, flushInterval, false);
metrics.RegisterThresholds("h", new[] { 0, 10, 20 });
metrics.RegisterThresholds("g", new[] { 30, 40 });
var window1From = clock.Current.RoundDown(windowSize);
var window1To = window1From + windowSize;
metrics.IncrementBucket("h", 0);
clock.Advance(windowSize);
sink.Buckets[new Metric("h", window1From, window1From + windowSize)][(0, 10)].Should().Be(1);
public void Setup()
{
names = Enumerable.Range(0, 50)
.Select(x => Guid.NewGuid().ToString())
.ToArray();
sink = new TextWriterSink(Console.Out, new LineSerializer());
metrics = new MetricsCollector(sink, TimeSpan.FromSeconds(1), TimeSpan.FromSeconds(1));
foreach (var name in names)
{
metrics.RegisterThresholds(name, new[] { 0, 10, 20, 30, 50, 75, 100 });
}
}
public void Run(IConfigurationRoot configuration)
{
var sink = ChooseSink();
var metricsWriterSettings = configuration.GetSection("MetricsWriter").Get <MetricsWriterSettings>();
var metricsCollectorSettings = configuration.GetSection("MetricsCollector").Get <MetricsCollectorSettings>();
if (sink is IDatabasePlugin databasePlugin)
{
var databaseConnectionSettings = configuration.GetSection("Database:Connection").Get <DatabaseConnectionSettings>();
var databaseTablesSettings = configuration.GetSection("Database:Tables").Get <DatabaseTablesSettings>();
databasePlugin.Initialize(databaseConnectionSettings, databaseTablesSettings, metricsWriterSettings);
}
using (var metrics = new MetricsCollector(sink, metricsCollectorSettings))
{
Console.WriteLine("Press some keys; enter to exit");
metrics.RegisterThresholds("latency", new int[] { 0, 50, 75, 100, 1000, 2000, 10000 });
var stopwatch = new Stopwatch();
char key;
do
{
stopwatch.Start();
key = Console.ReadKey(true).KeyChar;
stopwatch.Stop();
metrics.IncrementCounter(key.ToString());
metrics.IncrementBucket("latency", stopwatch.ElapsedMilliseconds);
metrics.Event(key.ToString());
// letters a-z: lowercase is start of interval, uppercase is end.
if (key >= 'a' && key <= 'z')
{
metrics.StartInterval("session", key.ToString());
}
else if (key >= 'A' && key <= 'Z')
{
metrics.EndInterval("session", key.ToString().ToLower());
}
stopwatch.Reset();
} while (key != '\r' && key != '\n');
}
Console.WriteLine("Press any key to exit");
Console.ReadKey();
}
