Create benchmarks updated. Global benchmark setup & cleanup added.

Recyclable.Collections.Benchmarks/BenchmarkBase.cs

@@ -1,10 +1,12 @@
-namespace Recyclable.Collections.Benchmarks
+using BenchmarkDotNet.Attributes;
+
+namespace Recyclable.Collections.Benchmarks
 {
 	public class BenchmarkBase
 	{
-		//[Params(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 128, 256, 512, 1024, 2048, 4096, 8192, 1_000_000)]
-		public const int TestObjectCount = 1_000_000;
-		public static int BlockSize = TestObjectCount switch
+		[Params(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 128, 256, 512, 1024, 2048, 4096, 8192, 1_000_000)]
+		public int TestObjectCount;
+		public int BlockSize => TestObjectCount switch
 		{
 			0 => 1,
 			> 0 and <= 10 => TestObjectCount,
@@ -14,12 +16,12 @@
 		protected object[]? _testObjects;
 		protected object[] TestObjects => _testObjects ??= Enumerable.Range(1, TestObjectCount).Select(x => new object()).ToArray();
 
-		private List<object>? _testObjectsAsList;
+		protected List<object>? _testObjectsAsList;
 		protected List<object> TestObjectsAsList => _testObjectsAsList ??= TestObjects.ToList();
 
-		private RecyclableArrayList<object>? _testObjectsAsRecyclableArrayList;
+		protected RecyclableArrayList<object>? _testObjectsAsRecyclableArrayList;
 		protected RecyclableArrayList<object> TestObjectsAsRecyclableArrayList => _testObjectsAsRecyclableArrayList ??= TestObjects.ToRecyclableArrayList();
-		protected IEnumerable<object> TestObjectsAsIEnumerable = Enumerable.Range(1, TestObjectCount).Select(static x => new object());
+		protected IEnumerable<object> TestObjectsAsIEnumerable => Enumerable.Range(1, TestObjectCount).Select(static x => new object());
 
 		protected static void DoNothing<T>(T obj)
 		{

Recyclable.Collections.Benchmarks/RecyclableCollectionsBenchmarks.Array.cs

@@ -5,16 +5,16 @@ namespace Recyclable.Collections.Benchmarks
 	[MemoryDiagnoser]
 	public partial class RecyclableCollectionsBenchmarks : BenchmarkBase
 	{
-		private readonly object[] _testArray;
+		private object[] _testArray;
 
-		//[Benchmark(Baseline = false)]
+		[Benchmark(Baseline = true)]
 		public void Array_Create_WithCapacity()
 		{
 			var data = new object[TestObjectCount];
 			DoNothing(data);
 		}
 
-		[Benchmark(Baseline = true)]
+		//[Benchmark(Baseline = true)]
 		public void Array_SetItem()
 		{
 			var data = TestObjects;

Recyclable.Collections.Benchmarks/RecyclableCollectionsBenchmarks.List.cs

@@ -4,9 +4,7 @@ namespace Recyclable.Collections.Benchmarks
 {
 	public partial class RecyclableCollectionsBenchmarks : BenchmarkBase
 	{
-		private readonly List<object> _testList;
-
-		//[Benchmark(Baseline = false)]
+		//[Benchmark(Baseline = true)]
 		public void List_Create()
 		{
 			var list = new List<object>();
@@ -20,7 +18,7 @@ namespace Recyclable.Collections.Benchmarks
 			DoNothing(list);
 		}
 
-		//[Benchmark]
+		[Benchmark]
 		public void List_Create_WithCapacity()
 		{
 			var list = new List<object>(TestObjectCount);
@@ -75,7 +73,7 @@ namespace Recyclable.Collections.Benchmarks
 			list.AddRange(data);
 		}
 
-		[Benchmark]
+		//[Benchmark]
 		public void List_AddRangeWhenSourceIsIEnumerable()
 		{
 			var data = TestObjectsAsIEnumerable;
@@ -117,7 +115,7 @@ namespace Recyclable.Collections.Benchmarks
 		//[Benchmark]
 		public void List_Count()
 		{
-			var data = _testList;
+			var data = TestObjectsAsList;
 			DoNothing(data.Count);
 		}
 	}

Recyclable.Collections.Benchmarks/RecyclableCollectionsBenchmarks.RecyclableArrayList.cs

@@ -4,23 +4,32 @@ namespace Recyclable.Collections.Benchmarks
 {
 	public partial class RecyclableCollectionsBenchmarks : BenchmarkBase
 	{
-		private readonly RecyclableArrayList<object> _testRecyclableArrayList;
+		private RecyclableArrayList<object> _testRecyclableArrayList;
 
-		public RecyclableCollectionsBenchmarks()
+		[GlobalSetup]
+		public void Setup()
 		{
 			_testRecyclableArrayList = new(TestObjects, TestObjectCount);
 			_testRecyclableList = new(TestObjects, TestObjectCount);
 			_testArray = TestObjects.ToArray();
-			_testList = new(TestObjects);
 			_ = TestObjectsAsList;
 			_ = TestObjectsAsRecyclableArrayList;
+			_ = TestObjectsAsIEnumerable;
 		}
 
-		~RecyclableCollectionsBenchmarks()
+
+		[GlobalCleanup]
+		public void Cleanup()
 		{
 			_testRecyclableArrayList?.Dispose();
+			_testRecyclableArrayList = default;
 			_testRecyclableList?.Dispose();
+			_testRecyclableList = default;
 			TestObjectsAsRecyclableArrayList?.Dispose();
+			_testObjectsAsRecyclableArrayList = default;
+			_testArray = default;
+			_testObjectsAsList = default;
+			_testObjects = default;
 		}
 
 		//[Benchmark]
@@ -37,7 +46,7 @@ namespace Recyclable.Collections.Benchmarks
 			DoNothing(list);
 		}
 
-		//[Benchmark]
+		[Benchmark]
 		public void RecyclableArrayList_Create_WithCapacity()
 		{
 			using var list = new RecyclableArrayList<object>(TestObjectCount);
@@ -92,7 +101,7 @@ namespace Recyclable.Collections.Benchmarks
 			list.AddRange(data);
 		}
 
-		[Benchmark]
+		//[Benchmark]
 		public void RecyclableArrayList_AddRangeWhenSourceIsIEnumerable()
 		{
 			var data = TestObjectsAsIEnumerable;
@@ -142,7 +151,7 @@ namespace Recyclable.Collections.Benchmarks
 		//[Benchmark]
 		public void RecyclableArrayList_Count()
 		{
-			var data = _testRecyclableArrayList;
+			var data = TestObjectsAsRecyclableArrayList;
 			DoNothing(data.Count);
 		}
 	}

Recyclable.Collections.Benchmarks/RecyclableCollectionsBenchmarks.RecyclableList.cs

@@ -4,7 +4,7 @@ namespace Recyclable.Collections.Benchmarks
 {
 	public partial class RecyclableCollectionsBenchmarks : BenchmarkBase
 	{
-		private readonly RecyclableList<object> _testRecyclableList;
+		private RecyclableList<object> _testRecyclableList;
 
 		//[Benchmark]
 		public void RecyclableList_Create()

Recyclable.Collections/RecyclableList.cs

@@ -70,6 +70,11 @@ namespace Recyclable.Collections
 
 		private static RecyclableArrayList<T[]> SetupMemoryBlocks(RecyclableList<T> owner, int blockSize, long? totalItemsCount)
 		{
+			if (blockSize <= 0)
+			{
+				return new();
+			}
+
 			totalItemsCount ??= 8 * blockSize;
 			int additionalArray = totalItemsCount % blockSize > 0 ? 1 : 0;
 			int memoryBlockCount = (int)(totalItemsCount.Value / blockSize).LimitTo(int.MaxValue) + additionalArray;