RecyclableList.Contains reworked for performance improvements. 69% vs List.Contains

Recyclable.Collections.Benchmarks/RecyclableCollectionsBenchmarks.List.cs

@@ -111,5 +111,17 @@ namespace Recyclable.Collections.Benchmarks
 			var data = TestObjectsAsList;
 			DoNothing(data.Count);
 		}
+
+		[Benchmark(Baseline = true)]
+		public void List_Contains()
+		{
+			var data = TestObjects;
+			var list = TestObjectsAsList;
+			var dataCount = 100_000;
+			for (var i = 0; i < dataCount; i++)
+			{
+				DoNothing(list.Contains(data[i]));
+			}
+		}
 	}
 }

Recyclable.Collections.Benchmarks/RecyclableCollectionsBenchmarks.RecyclableList.cs

@@ -4,21 +4,21 @@ namespace Recyclable.Collections.Benchmarks
 {
 	public partial class RecyclableCollectionsBenchmarks : BenchmarkBase
 	{
-		[Benchmark]
+		//[Benchmark]
 		public void RecyclableList_Create()
 		{
 			using var list = new RecyclableList<object>();
 			DoNothing(list);
 		}
 
-		[Benchmark]
+		//[Benchmark]
 		public void RecyclableList_Create_WithCapacity()
 		{
 			using var list = new RecyclableList<object>(minBlockSize: 102_400, expectedItemsCount: TestObjectCount);
 			DoNothing(list);
 		}
 
-		[Benchmark]
+		//[Benchmark]
 		public void RecyclableList_Add()
 		{
 			var data = TestObjects;
@@ -30,7 +30,7 @@ namespace Recyclable.Collections.Benchmarks
 			}
 		}
 
-		[Benchmark]
+		//[Benchmark]
 		public void RecyclableList_Add_WithCapacity()
 		{
 			var data = TestObjects;
@@ -77,5 +77,17 @@ namespace Recyclable.Collections.Benchmarks
 			var data = _testRecyclableList;
 			DoNothing(data.LongCount);
 		}
+
+		[Benchmark]
+		public void RecyclableList_Contains()
+		{
+			var data = TestObjects;
+			var list = TestObjectsAsRecyclableList;
+			var dataCount = 100_000;
+			for (var i = 0; i < dataCount; i++)
+			{
+				DoNothing(list.Contains(data[i]));
+			}
+		}
 	}
 }