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Queueing

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This commit is contained in:
Ahmed Zamil
2026-04-13 21:24:38 +03:00
parent b45c205d12
commit d26652bbd4
3 changed files with 88 additions and 82 deletions
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Tests/Distribution/Queueing/Client/QueueEval.cs
-79
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@@ -7,84 +7,6 @@ namespace Esiur.Tests.Queueing.Client
{
public static class EsiurQueueEval
{
public static class EvalPrinter
{
public static void Print(EsiurQueueEval.EvalResult r)
{
Console.WriteLine("=== Evaluation Result ===");
Console.WriteLine($"α (HasResource probability): {r.Alpha:F3}");
Console.WriteLine($"λ̂ (effective arrival rate): {r.LambdaEventsPerSecond:F2} events/s");
Console.WriteLine();
PrintLatencyTable(r.Latency);
Console.WriteLine();
PrintValidation(r.Validation);
if (r.FlushSizeStats != null)
{
Console.WriteLine();
PrintStats("Flush size (≤ window)", r.FlushSizeStats);
}
}
private static void PrintLatencyTable(EsiurQueueEval.LatencyDecomposition l)
{
Console.WriteLine("Latency Decomposition (ms)");
Console.WriteLine("-----------------------------------------------");
Console.WriteLine($"{"Metric",-16} {"Mean",8} {"P50",8} {"P95",8} {"P99",8} {"Max",8}");
Console.WriteLine("-----------------------------------------------");
PrintRow("Readiness R", l.ReadinessMs);
PrintRow("HOL Δ", l.HolMs);
PrintRow("End-to-End D", l.EndToEndMs);
Console.WriteLine("-----------------------------------------------");
}
private static void PrintValidation(EsiurQueueEval.ModelValidation v)
{
Console.WriteLine("Resequencing Model Validation");
Console.WriteLine("-----------------------------------------------");
Console.WriteLine("Absolute error |d − d̂| (ms)");
PrintStats("Error", v.AbsErrorMs);
if (v.MaxNegativeSlackMs > 0)
{
Console.WriteLine($"Max negative slack (delivered earlier than model): {v.MaxNegativeSlackMs:F4} ms");
}
else
{
Console.WriteLine("No negative slack observed (model is conservative).");
}
}
private static void PrintRow(string name, EsiurQueueEval.Stats s)
{
Console.WriteLine(
$"{name,-16} " +
$"{s.Mean,8:F2} " +
$"{s.P50,8:F2} " +
$"{s.P95,8:F2} " +
$"{s.P99,8:F2} " +
$"{s.Max,8:F2}"
);
}
private static void PrintStats(string name, EsiurQueueEval.Stats s)
{
Console.WriteLine(
$"{name,-20} " +
$"mean={s.Mean,8:F02} " +
$"p50={s.P50,8:F02} " +
$"p95={s.P95,8:F02} " +
$"p99={s.P99,8:F02} " +
$"max={s.Max,8:F02}"
);
}
}
public sealed record Stats(double Mean, double P50, double P95, double P99, double Max);
public sealed record LatencyDecomposition(Stats ReadinessMs, Stats HolMs, Stats EndToEndMs);
@@ -345,5 +267,4 @@ namespace Esiur.Tests.Queueing.Client
Max: arr.Average(s => s.Max));
}
}
}