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// Copyright (c) Microsoft. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
using Microsoft.Xunit.Performance;
using System;
using Xunit;
namespace PerfLabTests
{
internal delegate long DelegateLong(Object obj, long x, long y);
internal delegate void MultiDelegate(Object obj, long x, long y);
internal delegate int SerializeDelegate();
public class DelegatePerf
{
[Benchmark(InnerIterationCount = 200000)]
public void DelegateInvoke()
{
DelegateLong dl = new DelegateLong(this.Invocable1);
Object obj = new Object();
long ret = dl(obj, 100, 100);
foreach (var iteration in Benchmark.Iterations)
using (iteration.StartMeasurement())
for (int i = 0; i < Benchmark.InnerIterationCount; i++)
ret = dl(obj, 100, 100);
}
[Benchmark(InnerIterationCount = 1000)]
public void MulticastDelegateCombineInvoke()
{
MultiDelegate md = null;
Object obj = new Object();
foreach (var iteration in Benchmark.Iterations)
{
MultiDelegate md1 = new MultiDelegate(this.Invocable2);
MultiDelegate md2 = new MultiDelegate(this.Invocable2);
MultiDelegate md3 = new MultiDelegate(this.Invocable2);
MultiDelegate md4 = new MultiDelegate(this.Invocable2);
MultiDelegate md5 = new MultiDelegate(this.Invocable2);
MultiDelegate md6 = new MultiDelegate(this.Invocable2);
MultiDelegate md7 = new MultiDelegate(this.Invocable2);
MultiDelegate md8 = new MultiDelegate(this.Invocable2);
MultiDelegate md9 = new MultiDelegate(this.Invocable2);
MultiDelegate md10 = new MultiDelegate(this.Invocable2);
using (iteration.StartMeasurement())
{
for (int i = 0; i < Benchmark.InnerIterationCount; i++)
{
md = (MultiDelegate)Delegate.Combine(md1, md);
md = (MultiDelegate)Delegate.Combine(md2, md);
md = (MultiDelegate)Delegate.Combine(md3, md);
md = (MultiDelegate)Delegate.Combine(md4, md);
md = (MultiDelegate)Delegate.Combine(md5, md);
md = (MultiDelegate)Delegate.Combine(md6, md);
md = (MultiDelegate)Delegate.Combine(md7, md);
md = (MultiDelegate)Delegate.Combine(md8, md);
md = (MultiDelegate)Delegate.Combine(md9, md);
md = (MultiDelegate)Delegate.Combine(md10, md);
}
}
}
md(obj, 100, 100);
}
[Benchmark(InnerIterationCount = 10000)]
[InlineData(100)]
[InlineData(1000)]
public void MulticastDelegateInvoke(int length)
{
MultiDelegate md = null;
Object obj = new Object();
for (long i = 0; i < length; i++)
md = (MultiDelegate)Delegate.Combine(new MultiDelegate(this.Invocable2), md);
foreach (var iteration in Benchmark.Iterations)
using (iteration.StartMeasurement())
for (int i = 0; i < Benchmark.InnerIterationCount; i++)
md(obj, 100, 100);
}
internal virtual long Invocable1(Object obj, long x, long y)
{
long i = x + y;
return x;
}
internal virtual void Invocable2(Object obj, long x, long y)
{
long i = x + y;
}
}
}
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