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timcasselltimcassell
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Apply NoOptimization instead of AggressiveOptimization to loop methods.
Count down loops instead of count up. Added IntroStringBuilder. Added more return type test cases.
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21 files changed

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-620
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21 files changed

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-620
lines changed

‎samples/BenchmarkDotNet.Samples/IntroStringBuilder.cs‎

Lines changed: 34 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,34 @@
1+
using BenchmarkDotNet.Attributes;
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using System.Text;
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namespace BenchmarkDotNet.Samples
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{
6+
[MemoryDiagnoser(false)]
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public class IntroStringBuilder
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{
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[Benchmark]
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[Arguments(1)]
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[Arguments(1_000)]
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public StringBuilder Append_Strings(int repeat)
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{
14+
StringBuilder builder = new StringBuilder();
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// strings are not sorted by length to mimic real input
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for (int i = 0; i < repeat; i++)
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{
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builder.Append("12345");
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builder.Append("1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMN");
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builder.Append("1234567890abcdefghijklmnopqrstuvwxy");
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builder.Append("1234567890");
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builder.Append("1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHI");
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builder.Append("1234567890abcde");
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builder.Append("1234567890abcdefghijklmnopqrstuvwxyzABCD");
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builder.Append("1234567890abcdefghijklmnopqrst");
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builder.Append("1234567890abcdefghij");
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builder.Append("1234567890abcdefghijklmno");
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}
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return builder;
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}
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}
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}

‎src/BenchmarkDotNet/Code/CodeGenerator.cs‎

Lines changed: 5 additions & 20 deletions
Original file line numberDiff line numberDiff line change
@@ -146,36 +146,21 @@ private static DeclarationsProvider GetDeclarationsProvider(Descriptor descripto
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if (method.ReturnType == typeof(Task) || method.ReturnType == typeof(ValueTask))
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{
149-
return new TaskDeclarationsProvider(descriptor);
149+
return new AsyncDeclarationsProvider(descriptor);
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}
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if (method.ReturnType.GetTypeInfo().IsGenericType
152152
&& (method.ReturnType.GetTypeInfo().GetGenericTypeDefinition() == typeof(Task<>)
153153
|| method.ReturnType.GetTypeInfo().GetGenericTypeDefinition() == typeof(ValueTask<>)))
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{
155-
return new GenericTaskDeclarationsProvider(descriptor);
155+
return new AsyncDeclarationsProvider(descriptor);
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}
157157

158-
if (method.ReturnType == typeof(void))
158+
if (method.ReturnType == typeof(void) && method.HasAttribute<AsyncStateMachineAttribute>())
159159
{
160-
bool isUsingAsyncKeyword = method.HasAttribute<AsyncStateMachineAttribute>();
161-
if (isUsingAsyncKeyword)
162-
{
163-
throw new NotSupportedException("async void is not supported by design");
164-
}
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return new VoidDeclarationsProvider(descriptor);
167-
}
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if (method.ReturnType.IsByRef)
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{
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// System.Runtime.CompilerServices.IsReadOnlyAttribute is part of .NET Standard 2.1, we can't use it here..
172-
if (method.ReturnParameter.GetCustomAttributes().Any(attribute => attribute.GetType().Name == "IsReadOnlyAttribute"))
173-
return new ByReadOnlyRefDeclarationsProvider(descriptor);
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else
175-
return new ByRefDeclarationsProvider(descriptor);
160+
throw new NotSupportedException("async void is not supported by design");
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}
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178-
return new NonVoidDeclarationsProvider(descriptor);
163+
return new SyncDeclarationsProvider(descriptor);
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}
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181166
// internal for tests

‎src/BenchmarkDotNet/Code/DeclarationsProvider.cs‎

Lines changed: 5 additions & 58 deletions
Original file line numberDiff line numberDiff line change
@@ -1,10 +1,6 @@
1-
using System;
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using System.Linq;
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using System.Reflection;
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using System.Reflection;
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using System.Threading.Tasks;
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using BenchmarkDotNet.Engines;
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using BenchmarkDotNet.Extensions;
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using BenchmarkDotNet.Helpers;
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using BenchmarkDotNet.Running;
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106
namespace BenchmarkDotNet.Code
@@ -30,14 +26,6 @@ internal abstract class DeclarationsProvider
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public string IterationCleanupMethodName => Descriptor.IterationCleanupMethod?.Name ?? EmptyAction;
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33-
public abstract string ReturnsDefinition { get; }
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protected virtual Type WorkloadMethodReturnType => Descriptor.WorkloadMethod.ReturnType;
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public virtual string WorkloadMethodReturnTypeName => WorkloadMethodReturnType.GetCorrectCSharpTypeName();
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public virtual string WorkloadMethodReturnTypeModifiers => null;
40-
4129
public virtual string GetWorkloadMethodCall(string passArguments) => $"{Descriptor.WorkloadMethod.Name}({passArguments})";
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4331
private string GetMethodName(MethodInfo method)
@@ -60,55 +48,14 @@ private string GetMethodName(MethodInfo method)
6048
}
6149
}
6250

63-
internal class VoidDeclarationsProvider : DeclarationsProvider
64-
{
65-
public VoidDeclarationsProvider(Descriptor descriptor) : base(descriptor) { }
66-
67-
public override string ReturnsDefinition => "RETURNS_VOID";
68-
}
69-
70-
internal class NonVoidDeclarationsProvider : DeclarationsProvider
71-
{
72-
public NonVoidDeclarationsProvider(Descriptor descriptor) : base(descriptor) { }
73-
74-
public override string ReturnsDefinition => "RETURNS_NON_VOID";
75-
}
76-
77-
internal class ByRefDeclarationsProvider : NonVoidDeclarationsProvider
78-
{
79-
public ByRefDeclarationsProvider(Descriptor descriptor) : base(descriptor) { }
80-
81-
public override string WorkloadMethodReturnTypeName => base.WorkloadMethodReturnTypeName.Replace("&", string.Empty);
82-
83-
public override string ReturnsDefinition => "RETURNS_BYREF";
84-
85-
public override string WorkloadMethodReturnTypeModifiers => "ref";
86-
}
87-
88-
internal class ByReadOnlyRefDeclarationsProvider : ByRefDeclarationsProvider
51+
internal class SyncDeclarationsProvider : DeclarationsProvider
8952
{
90-
public ByReadOnlyRefDeclarationsProvider(Descriptor descriptor) : base(descriptor) { }
91-
92-
public override string WorkloadMethodReturnTypeModifiers => "ref readonly";
53+
public SyncDeclarationsProvider(Descriptor descriptor) : base(descriptor) { }
9354
}
9455

95-
internal class TaskDeclarationsProvider : VoidDeclarationsProvider
56+
internal class AsyncDeclarationsProvider : DeclarationsProvider
9657
{
97-
public TaskDeclarationsProvider(Descriptor descriptor) : base(descriptor) { }
98-
99-
public override string GetWorkloadMethodCall(string passArguments) => $"BenchmarkDotNet.Helpers.AwaitHelper.GetResult({Descriptor.WorkloadMethod.Name}({passArguments}))";
100-
101-
protected override Type WorkloadMethodReturnType => typeof(void);
102-
}
103-
104-
/// <summary>
105-
/// declarations provider for <see cref="Task{TResult}" /> and <see cref="ValueTask{TResult}" />
106-
/// </summary>
107-
internal class GenericTaskDeclarationsProvider : NonVoidDeclarationsProvider
108-
{
109-
public GenericTaskDeclarationsProvider(Descriptor descriptor) : base(descriptor) { }
110-
111-
protected override Type WorkloadMethodReturnType => Descriptor.WorkloadMethod.ReturnType.GetTypeInfo().GetGenericArguments().Single();
58+
public AsyncDeclarationsProvider(Descriptor descriptor) : base(descriptor) { }
11259

11360
public override string GetWorkloadMethodCall(string passArguments) => $"BenchmarkDotNet.Helpers.AwaitHelper.GetResult({Descriptor.WorkloadMethod.Name}({passArguments}))";
11461
}

‎src/BenchmarkDotNet/Helpers/Reflection.Emit/IlGeneratorCallExtensions.cs‎

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Original file line numberDiff line numberDiff line change
@@ -7,25 +7,6 @@ namespace BenchmarkDotNet.Helpers.Reflection.Emit
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{
88
internal static class IlGeneratorCallExtensions
99
{
10-
public static LocalBuilder DeclareOptionalLocalForInstanceCall(
11-
this ILGenerator ilBuilder,
12-
Type localType,
13-
MethodInfo methodToCall)
14-
{
15-
if (methodToCall.DeclaringType == null)
16-
throw new ArgumentException($"The {nameof(methodToCall)} should have non-null {nameof(methodToCall.DeclaringType)}.");
17-
18-
if (methodToCall.IsStatic)
19-
return null;
20-
21-
if (!methodToCall.DeclaringType.IsAssignableFrom(localType))
22-
throw new ArgumentException($"{methodToCall.DeclaringType} is not assignable from {localType}.");
23-
24-
return localType.IsValueType && localType != typeof(void)
25-
? ilBuilder.DeclareLocal(localType)
26-
: null;
27-
}
28-
2910
public static void EmitStaticCall(
3011
this ILGenerator ilBuilder,
3112
MethodInfo methodToCall,

‎src/BenchmarkDotNet/Helpers/Reflection.Emit/IlGeneratorDefaultValueExtensions.cs‎

Lines changed: 0 additions & 169 deletions
This file was deleted.

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