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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System;
using System.Collections.Generic;
using System.Diagnostics;
using Microsoft.Xunit.Performance;
[assembly: OptimizeForBenchmarks]
namespace Functions
{
public static class Program
{
#if DEBUG
private const int defaultIterations = 1;
#else
private const int defaultIterations = 1000;
#endif
private static readonly IDictionary<string, Action> TestList = new Dictionary<string, Action>() {
["absdouble"] = MathTests.AbsDoubleTest,
["abssingle"] = MathTests.AbsSingleTest,
["acosdouble"] = MathTests.AcosDoubleTest,
["acossingle"] = MathTests.AcosSingleTest,
["asindouble"] = MathTests.AsinDoubleTest,
["asinsingle"] = MathTests.AsinSingleTest,
["atandouble"] = MathTests.AtanDoubleTest,
["atansingle"] = MathTests.AtanSingleTest,
["atan2double"] = MathTests.Atan2DoubleTest,
["atan2single"] = MathTests.Atan2SingleTest,
["ceilingdouble"] = MathTests.CeilingDoubleTest,
["ceilingsingle"] = MathTests.CeilingSingleTest,
["cosdouble"] = MathTests.CosDoubleTest,
["cossingle"] = MathTests.CosSingleTest,
["coshdouble"] = MathTests.CoshDoubleTest,
["coshsingle"] = MathTests.CoshSingleTest,
["expdouble"] = MathTests.ExpDoubleTest,
["expsingle"] = MathTests.ExpSingleTest,
["floordouble"] = MathTests.FloorDoubleTest,
["floorsingle"] = MathTests.FloorSingleTest,
["logdouble"] = MathTests.LogDoubleTest,
["logsingle"] = MathTests.LogSingleTest,
["log10double"] = MathTests.Log10DoubleTest,
["log10single"] = MathTests.Log10SingleTest,
["powdouble"] = MathTests.PowDoubleTest,
["powsingle"] = MathTests.PowSingleTest,
["rounddouble"] = MathTests.RoundDoubleTest,
["roundsingle"] = MathTests.RoundSingleTest,
["sindouble"] = MathTests.SinDoubleTest,
["sinsingle"] = MathTests.SinSingleTest,
["sinhdouble"] = MathTests.SinhDoubleTest,
["sinhsingle"] = MathTests.SinhSingleTest,
["sqrtdouble"] = MathTests.SqrtDoubleTest,
["sqrtsingle"] = MathTests.SqrtSingleTest,
["tandouble"] = MathTests.TanDoubleTest,
["tansingle"] = MathTests.TanSingleTest,
["tanhdouble"] = MathTests.TanhDoubleTest,
["tanhsingle"] = MathTests.TanhSingleTest
};
private static int Main(string[] args)
{
var isPassing = true; var iterations = defaultIterations;
ICollection<string> testsToRun = new HashSet<string>();
try
{
for (int index = 0; index < args.Length; index++)
{
if (args[index].ToLowerInvariant() == "-bench")
{
index++;
if ((index >= args.Length) || !int.TryParse(args[index], out iterations))
{
iterations = defaultIterations;
}
}
else if (args[index].ToLowerInvariant() == "all")
{
testsToRun = TestList.Keys;
break;
}
else
{
var testName = args[index].ToLowerInvariant();
if (!TestList.ContainsKey(testName))
{
PrintUsage();
break;
}
testsToRun.Add(testName);
}
}
if (testsToRun.Count == 0)
{
testsToRun = TestList.Keys;
}
foreach (var testToRun in testsToRun)
{
Console.WriteLine($"Running {testToRun} test...");
Test(iterations, TestList[testToRun]);
}
}
catch (Exception exception)
{
Console.WriteLine($" Error: {exception.Message}");
isPassing = false;
}
return isPassing ? 100 : -1;
}
private static void PrintUsage()
{
Console.WriteLine(@"Usage:
Functions [name] [-bench #]
[name]: The name of the function to test. Defaults to 'all'.
all");
foreach (var testName in TestList.Keys)
{
Console.WriteLine($" {testName}");
}
Console.WriteLine($@"
[-bench #]: The number of iterations. Defaults to {defaultIterations}");
}
private static void Test(int iterations, Action action)
{
// ****************************************************************
Console.WriteLine(" Warming up...");
var startTimestamp = Stopwatch.GetTimestamp();
action();
var totalElapsedTime = (Stopwatch.GetTimestamp() - startTimestamp);
var totalElapsedTimeInSeconds = (totalElapsedTime / (double)(Stopwatch.Frequency));
Console.WriteLine($" Total Time: {totalElapsedTimeInSeconds}");
// ****************************************************************
Console.WriteLine($" Executing {iterations} iterations...");
totalElapsedTime = 0L;
for (var iteration = 0; iteration < iterations; iteration++)
{
startTimestamp = Stopwatch.GetTimestamp();
action();
totalElapsedTime += (Stopwatch.GetTimestamp() - startTimestamp);
}
totalElapsedTimeInSeconds = (totalElapsedTime / (double)(Stopwatch.Frequency));
Console.WriteLine($" Total Time: {totalElapsedTimeInSeconds} seconds");
Console.WriteLine($" Average Time: {totalElapsedTimeInSeconds / iterations} seconds");
// ****************************************************************
}
}
}
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