RecyclableArrayList[int index] set performance improvement. Add marked for aggresive inlining.

Recyclable.Collections.Benchmarks/Program.cs

@@ -3,8 +3,8 @@ using Recyclable.Collections.Benchmarks;
 
 //BenchmarkSwitcher.FromAssembly(typeof(Program).Assembly).Run(new[] { "-f*" });
 
-//BenchmarkRunner.Run<RecyclableCollectionsBenchmarks>();
+BenchmarkRunner.Run<RecyclableCollectionsBenchmarks>();
-BenchmarkRunner.Run<RefVsInstanceMemberBenchmarks>();
+//BenchmarkRunner.Run<RefVsInstanceMemberBenchmarks>();
 
 //var benchmark = new RecyclableCollectionsBenchmarks();
 //benchmark.RecyclableArrayList_AddRange_WithCapacity();

Recyclable.Collections.Benchmarks/RecyclableCollectionsBenchmarks.Array.cs

@@ -7,7 +7,7 @@ namespace Recyclable.Collections.Benchmarks
 	{
 		private readonly object[] _testArray;
 
-		[Benchmark(Baseline = false)]
+		//[Benchmark(Baseline = false)]
 		public void Array_Create_WithCapacity()
 		{
 			var data = new object[TestObjectCount];

Recyclable.Collections.Benchmarks/RecyclableCollectionsBenchmarks.RecyclableArrayList.cs

@@ -12,12 +12,15 @@ namespace Recyclable.Collections.Benchmarks
 			_testRecyclableList = new(TestObjects, TestObjectCount);
 			_testArray = TestObjects.ToArray();
 			_testList = new(TestObjects);
+			_ = TestObjectsAsList;
+			_ = TestObjectsAsRecyclableArrayList;
 		}
 
 		~RecyclableCollectionsBenchmarks()
 		{
 			_testRecyclableArrayList?.Dispose();
 			_testRecyclableList?.Dispose();
+			TestObjectsAsRecyclableArrayList?.Dispose();
 		}
 
 		//[Benchmark]
@@ -123,8 +126,6 @@ namespace Recyclable.Collections.Benchmarks
 			{
 				data[i] = TestObjects[i];
 			}
-
-			data.Count = dataCount;
 		}
 
 		[Benchmark]

Recyclable.Collections/RecyclableArrayList.cs

@@ -127,7 +127,7 @@ namespace Recyclable.Collections
 		public T this[int index]
 		{
 			get => _memory[index];
-			set => _memory[index] = value;
+			set => new Span<T>(_memory)[index] = value;
 		}
 
 		protected int _capacity;
@@ -153,6 +153,7 @@ namespace Recyclable.Collections
 
 		public bool IsReadOnly { get; } = false;
 
+		[MethodImpl(MethodImplOptions.AggressiveInlining)]
 		public void Add(T item)
 		{
 			int requestedCapacity = _count + 1;