Add benchmarks

Benchmark/Bench.cs

@@ -0,0 +1,59 @@
+using BenchmarkDotNet.Attributes;
+using BenchmarkDotNet.Jobs;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Numerics;
+using System.Security.Cryptography;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Craftimizer.Benchmark;
+
+[SimpleJob(RuntimeMoniker.Net70)]
+[SimpleJob(RuntimeMoniker.NativeAot70)]
+public class Bench
+{
+    private float[] data;
+    private int[] dataLengths;
+
+    [Params(1000, 10000)]
+    public int N;
+
+    [GlobalSetup]
+    public void Setup()
+    {
+        var rand = new Random();
+        data = new float[N * 8];
+        dataLengths = new int[N];
+        for (var i = 0; i < data.Length; i += 8)
+        {
+            var len = rand.NextSingle() > .5 ? 8 : rand.Next(1, 9);
+            dataLengths[i / 8] = len;
+            for (var j = 0; j < len; ++j)
+                data[i + j] = rand.NextSingle();
+            for (var j = len; j < 8; ++j)
+                data[i + j] = float.NaN;
+        }
+    }
+
+    [Benchmark]
+    public int[] Scalar()
+    {
+        var d = new int[N];
+        var dataSpan = data.AsSpan();
+        for (var i = 0; i < N; ++i)
+            d[i] = Solver.Crafty.Solver.HMaxIndexScalar(new Vector<float>(dataSpan.Slice(i * 8, 8)), dataLengths[i]);
+        return d;
+    }
+
+    [Benchmark]
+    public int[] AVX2()
+    {
+        var d = new int[128];
+        var dataSpan = data.AsSpan();
+        for (var i = 0; i < 128; ++i)
+            d[i] = Solver.Crafty.Solver.HMaxIndexAVX2(new Vector<float>(dataSpan.Slice(i * 8, 8)), dataLengths[i]);
+        return d;
+    }
+}

Benchmark/Craftimizer.Benchmark.csproj

@@ -8,6 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="BenchmarkDotNet" Version="0.13.5" />
     <PackageReference Include="Meziantou.Analyzer" Version="2.0.61">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>

Benchmark/Program.cs

@@ -1,3 +1,4 @@
+using BenchmarkDotNet.Running;
 using Craftimizer.Simulator;
 using Craftimizer.Simulator.Actions;
 using Craftimizer.Solver.Crafty;
@@ -10,6 +11,9 @@ internal static class Program
 {
     private static void Main()
     {
+        //var summary = BenchmarkRunner.Run<Bench>();
+        //return;
+
         //TypeLayout.PrintLayout<ArenaNode<SimulationNode>>(true);
         //return;
 
@@ -33,7 +37,7 @@ internal static class Program
 
         var config = new SolverConfig()
         {
-            Iterations = 1_000_000
+            Iterations = 30_000,//1_000_000
         };
 
         var s = Stopwatch.StartNew();