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SumArray.cs
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129 lines (115 loc) · 2.75 KB
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using System;
using System.Numerics;
using System.Linq;
using BenchmarkDotNet.Attributes;
using BenchmarkDotNet.Engines;
using BenchmarkDotNet.Running;
namespace NumSharp.Benchmark
{
//[RPlotExporter, RankColumn]
[SimpleJob(RunStrategy.ColdStart, targetCount: 20)]
[SimpleJob(RunStrategy.Throughput, targetCount: 20)]
[MinColumn, MaxColumn, MeanColumn, MedianColumn]
[HtmlExporter]
public class SumArray
{
public double[] np1;
public double[] np2;
[GlobalSetup]
public void Setup()
{
var rnd = new Randomizer(42);
// first array
np1 = new double[10_000_000];
for (int i = 0; i < np1.Length; i++)
{
np1[i] = rnd.NextDouble();
}
}
[Benchmark(Baseline = true)]
public void ForLoop()
{
double sum = 0;
for (int i = 0; i < np1.Length; i++)
{
sum += np1[i];
}
}
[Benchmark]
public void Foreach()
{
double sum = 0;
foreach (var v in np1) {
sum += v;
}
}
[Benchmark]
public void ForLoopPredefined()
{
double sum = 0;
int till = np1.Length;
for (int i = 0; i < till; i++)
{
sum += np1[i];
}
}
[Benchmark]
public void ForLoopCheckedOuter()
{
double sum = 0;
checked
{
for (int i = 0; i < np1.Length; i++)
{
sum += np1[i];
}
}
}
[Benchmark]
public void ForLoopCheckedInner()
{
double sum = 0;
for (int i = 0; i < np1.Length; i++)
{
checked
{
sum += np1[i];
}
}
}
[Benchmark]
public void ForLoopUncheckedInner()
{
double sum = 0;
for (int i = 0; i < np1.Length; i++)
{
unchecked
{
sum += np1[i];
}
}
}
[Benchmark]
public void ForLoopUncheckedOuter()
{
double sum = 0;
unchecked
{
for (int i = 0; i < np1.Length; i++)
{
sum += np1[i];
}
}
}
[Benchmark]
public void Linq()
{
var sum = np1.Sum();
}
[Benchmark]
public void Agregate()
{
var sum = np1.Sum();
}
}
}