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Populate an array with the same value: .NET 10, span fill and BenchmarkDotNet args #2312

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Populate an array with the same value: .NET 10, span fill and BenchmarkDotNet args #2312

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58 changes: 29 additions & 29 deletions collections-arrays/PopulateArrayWithTheSameValue/BenchmarkRunner/ArrayPopulatorBenchmark.cs
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Original file line number Diff line number Diff line change
@@ -1,40 +1,40 @@
using BenchmarkDotNet.Attributes;
using PopulateArrayWithTheSameValue;

namespace BenchmarkRunner
namespace BenchmarkRunner;

[MemoryDiagnoser]
public class ArrayPopulatorBenchmark
{
public class ArrayPopulatorBenchmark
private static readonly ArrayPopulator _arrayPopulator = new();
private readonly Article[] _benchMarkArray = new Article[100_000];
private readonly Article _benchmarkArticle = new()
{
private static readonly ArrayPopulator _arrayPopulator = new();
private readonly Article[] _benchMarkArray = new Article[1000 * 100];
private readonly Article _benchmarkArticle = new()
{
Title = "How to Copy Array Elements to New Array in C#",
LastUpdate = new DateTime(2022, 01, 31)
};
Title = "How to Copy Array Elements to New Array in C#",
LastUpdate = new DateTime(2022, 01, 31)
};

[Benchmark]
public void FillArray()
{
_arrayPopulator.FillArray(_benchMarkArray, _benchmarkArticle);
}
[Benchmark]
public void FillArray()
{
_arrayPopulator.FillArray(_benchMarkArray, _benchmarkArticle);
}

[Benchmark]
public void EnumerableRepeat()
{
_arrayPopulator.EnumerableRepeat(_benchmarkArticle, _benchMarkArray.Length);
}
[Benchmark]
public void EnumerableRepeat()
{
_arrayPopulator.EnumerableRepeat(_benchmarkArticle, _benchMarkArray.Length);
}

[Benchmark]
public void ForStatement()
{
_arrayPopulator.ForStatement(_benchMarkArray, _benchmarkArticle);
}
[Benchmark]
public void ForStatement()
{
_arrayPopulator.ForStatement(_benchMarkArray, _benchmarkArticle);
}

[Benchmark]
public void ForStatementShallowCopy()
{
_arrayPopulator.ForStatementShallowCopy(_benchMarkArray, _benchmarkArticle);
}
[Benchmark]
public void ForStatementShallowCopy()
{
_arrayPopulator.ForStatementShallowCopy(_benchMarkArray, _benchmarkArticle);
}
}
4 changes: 2 additions & 2 deletions collections-arrays/PopulateArrayWithTheSameValue/BenchmarkRunner/BenchmarkRunner.csproj
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Expand Up @@ -2,13 +2,13 @@

<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net6.0</TargetFramework>
<TargetFramework>net10.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>

<ItemGroup>
<PackageReference Include="BenchmarkDotNet" Version="0.13.1" />
<PackageReference Include="BenchmarkDotNet" Version="0.15.8" />
</ItemGroup>

<ItemGroup>
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15 changes: 8 additions & 7 deletions collections-arrays/PopulateArrayWithTheSameValue/BenchmarkRunner/Program.cs
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Original file line number Diff line number Diff line change
@@ -1,10 +1,11 @@
namespace BenchmarkRunner
using BenchmarkDotNet.Running;

namespace BenchmarkRunner;

internal class Program
{
internal class Program
static void Main(string[] args)
{
static void Main(string[] args)
{
BenchmarkDotNet.Running.BenchmarkRunner.Run<ArrayPopulatorBenchmark>();
}
BenchmarkDotNet.Running.BenchmarkRunner.Run<ArrayPopulatorBenchmark>(args: args);
}
}
}
101 changes: 58 additions & 43 deletions ...ions-arrays/PopulateArrayWithTheSameValue/PopulateArrayWithTheSameValue/ArrayPopulator.cs
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@@ -1,59 +1,74 @@
namespace PopulateArrayWithTheSameValue
namespace PopulateArrayWithTheSameValue;

public class ArrayPopulator
{
public class ArrayPopulator
public Article[] InstantiateArrayManually()
{
public Article[] InstantiateArrayManually()
{
return new Article[]
{
new Article { Title = "How to Copy Array Elements to New Array in C#", LastUpdate = new DateTime(2022, 01, 31)},
new Article { Title = "How to Copy Array Elements to New Array in C#", LastUpdate = new DateTime(2022, 01, 31)},
};
}
return
[
new() { Title = "How to Copy Array Elements to New Array in C#", LastUpdate = new DateTime(2022, 01, 31) },
new() { Title = "How to Copy Array Elements to New Array in C#", LastUpdate = new DateTime(2022, 01, 31) }
];
}

public Article[] FillArray(Article[] array, Article value)
{
Array.Fill(array, value);
public Article[] FillArray(Article[] array, Article value)
{
Array.Fill(array, value);

return array;
}

public Article[] FillArrayWithAditionalParameter(Article[] array, Article value)
{
Array.Fill(array, value, 5, 2);
return array;
}

return array;
}
public Article[] FillArrayWithAditionalParameter(Article[] array, Article value)
{
Array.Fill(array, value, 5, 2);

public Article[] EnumerableRepeat(Article value, int count)
{
var articles = Enumerable.Repeat(value, count).ToArray();
return array;
}

return articles;
}
public Article[] FillWithSpan(Article article)
{
var articles = new Article[10];
articles.AsSpan().Fill(article);
articles.AsSpan(5, 2).Fill(article);

public Article[] ForStatement(Article[] articles, Article article)
return articles;
}

public Article[] FillRangeWithSpan(Article[] articles, Article article)
{
articles.AsSpan(5, 2).Fill(article);

return articles;
}

public Article[] EnumerableRepeat(Article value, int count)
{
var articles = Enumerable.Repeat(value, count).ToArray();

return articles;
}

public Article[] ForStatement(Article[] articles, Article article)
{
for (int index = 0; index < articles.Length; index++)
{
for (int index = 0; index < articles.Length; index++)
articles[index] = new Article
{
articles[index] = new Article
{
Title = article.Title,
LastUpdate = article.LastUpdate
};
}

return articles;
Title = article.Title,
LastUpdate = article.LastUpdate
};
}

public Article[] ForStatementShallowCopy(Article[] articles, Article article)
{
for (int index = 0; index < articles.Length; index++)
{
articles[index] = article;
}
return articles;
}

return articles;
public Article[] ForStatementShallowCopy(Article[] articles, Article article)
{
for (int index = 0; index < articles.Length; index++)
{
articles[index] = article;
}

return articles;
}
}
3 changes: 1 addition & 2 deletions ...eArrayWithTheSameValue/PopulateArrayWithTheSameValue/PopulateArrayWithTheSameValue.csproj
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Expand Up @@ -2,8 +2,7 @@

<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net6.0</TargetFramework>
<LangVersion>10</LangVersion>
<TargetFramework>net10.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>
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