From 1d35f2889cf9ffe79cc22340b5ee813c7f84e785 Mon Sep 17 00:00:00 2001
From: Natalia Portillo <claunia@claunia.com>
Date: Sat, 4 May 2024 12:37:44 +0100
Subject: [PATCH] Add lambda benchmarks.

---
 AaruBenchmark/Benchs.cs  | 44 ++++++++++++++++++++++++++++++++++++++++
 AaruBenchmark/Program.cs |  1 +
 2 files changed, 45 insertions(+)

diff --git a/AaruBenchmark/Benchs.cs b/AaruBenchmark/Benchs.cs
index 723ad90..66cc3c5 100644
--- a/AaruBenchmark/Benchs.cs
+++ b/AaruBenchmark/Benchs.cs
@@ -1,4 +1,7 @@
 using System;
+using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
+using System.Linq;
 using BenchmarkDotNet.Attributes;
 using BenchmarkDotNet.Configs;
 using BenchmarkDotNet.Environments;
@@ -802,4 +805,45 @@ namespace AaruBenchmark
         public void AaruNative() => throw new NotImplementedException();
 #endif
     }
+
+    [SimpleJob(RuntimeMoniker.NetCoreApp31, baseline: true)]
+    [Core31RosettaJob]
+    [Core31WoA]
+    [Core31Arm]
+    [SimpleJob(RuntimeMoniker.Net80)]
+    [SimpleJob(RuntimeMoniker.NativeAot80)]
+    [MemoryDiagnoser(false)]
+    [HideColumns("Job", "Error", "StdDev", "Median", "RatioSD", "Alloc Ratio")]
+    [SuppressMessage("ReSharper", "ConvertClosureToMethodGroup")]
+    [SuppressMessage("ReSharper", "LambdaExpressionCanBeMadeStatic")]
+    [SuppressMessage("ReSharper", "MemberCanBeMadeStatic.Local")]
+
+    // Windows only
+    // [NativeMemoryProfiler]
+    public class LambdaBenchs
+    {
+        static readonly IEnumerable<int> ListOfInts = Enumerable.Range(1, 10_000).ToList();
+
+        [Benchmark]
+        public int Lambda_Static() => ListOfInts.Count(x => ConditionStatic(x));
+
+        [Benchmark]
+        public int MethodGroup_Static() => ListOfInts.Count(ConditionStatic);
+
+        static bool ConditionStatic(int value) => value > 10;
+
+        [Benchmark]
+        public int Lambda_Instance() => ListOfInts.Count(x => ConditionInstance(x));
+
+        [Benchmark]
+        public int MethodGroup_Instance() => ListOfInts.Count(ConditionInstance);
+
+        bool ConditionInstance(int value) => value > 10;
+
+        [Benchmark]
+        public int Anonymous_Instance() => ListOfInts.Count(x => x > 10);
+
+        [Benchmark]
+        public int Anonymous_Static() => ListOfInts.Count(static x => x > 10);
+    }
 }
\ No newline at end of file
diff --git a/AaruBenchmark/Program.cs b/AaruBenchmark/Program.cs
index c08bd3d..26c14d2 100644
--- a/AaruBenchmark/Program.cs
+++ b/AaruBenchmark/Program.cs
@@ -43,6 +43,7 @@ namespace AaruBenchmark
             BenchmarkRunner.Run<Sha384Benchs>(config);
             BenchmarkRunner.Run<Sha512Benchs>(config);
             BenchmarkRunner.Run<SpamSumBenchs>(config);
+            BenchmarkRunner.Run<LambdaBenchs>(config);
         }
     }
 }
\ No newline at end of file