public void CanAppendHistogram()
{
var histogram1 = Create(DefaultHighestTrackableValue, DefaultSignificantDigits);
histogram1.RecordValue(1);
histogram1.RecordValue((long.MaxValue / 2) + 1);
histogram1.SetTimes();
var histogram2 = Create(DefaultHighestTrackableValue, DefaultSignificantDigits);
histogram2.RecordValue(2);
histogram2.SetTimes();
byte[] data;
using (var writerStream = new MemoryStream())
using (var log = new HistogramLogWriter(writerStream))
{
log.Append(histogram1);
log.Append(histogram2);
data = writerStream.ToArray();
}
var actualHistograms = data.ReadHistograms();
Assert.Equal(2, actualHistograms.Length);
HistogramAssert.AreValueEqual(histogram1, actualHistograms.First());
HistogramAssert.AreValueEqual(histogram2, actualHistograms.Skip(1).First());
}
private void WriteToDisk(Recorder recorder)
{
//Sample every second until flagged as completed.
var accumulatingHistogram = new LongHistogram(TimeStamp.Hours(1), 3);
while (_isCompleted == 0)
{
Thread.Sleep(1000);
var histogram = recorder.GetIntervalHistogram();
accumulatingHistogram.Add(histogram);
_logWriter.Append(histogram);
Console.WriteLine($"{DateTime.Now:o} Interval.TotalCount = {histogram.TotalCount,10:G}. Accumulated.TotalCount = {accumulatingHistogram.TotalCount,10:G}.");
}
_logWriter.Dispose();
_outputStream.Dispose();
Console.WriteLine("Log contents");
Console.WriteLine(File.ReadAllText(LogPath));
Console.WriteLine();
Console.WriteLine("Percentile distribution (values reported in milliseconds)");
accumulatingHistogram.OutputPercentileDistribution(Console.Out, outputValueUnitScalingRatio: OutputScalingFactor.TimeStampToMilliseconds);
Console.WriteLine("Output thread finishing.");
}
static void DocumentResults(LongHistogram accumulatingHistogram, Recorder recorder)
{
recorder?.RecordValue(GC.GetTotalMemory(false));
var histogram = recorder?.GetIntervalHistogram();
accumulatingHistogram?.Add(histogram);
_logWriter?.Append(histogram);
RILogManager.Default?.SendDebug($"Accumulated.TotalCount = {accumulatingHistogram.TotalCount,10:G}.");
RILogManager.Default?.SendDebug("Mean: " + BytesToString(accumulatingHistogram.GetMean()) + ", StdDev: " +
BytesToString(accumulatingHistogram.GetStdDeviation()));
}
public void CanAppendHistogram()
{
var histogram1 = Create(DefaultHighestTrackableValue, DefaultSignificantDigits);
histogram1.RecordValue(1);
histogram1.RecordValue((long.MaxValue / 2) + 1);
histogram1.SetTimes();
var histogram2 = Create(DefaultHighestTrackableValue, DefaultSignificantDigits);
histogram2.RecordValue(2);
histogram2.SetTimes();
byte[] data;
using (var writerStream = new MemoryStream())
using (var log = new HistogramLogWriter(writerStream))
{
log.Append(histogram1);
log.Append(histogram2);
data = writerStream.ToArray();
}
var actualHistograms = data.ReadHistograms();
Assert.AreEqual(2, actualHistograms.Length);
HistogramAssert.AreValueEqual(histogram1, actualHistograms.First());
HistogramAssert.AreValueEqual(histogram2, actualHistograms.Skip(1).First());
}