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BenchmarkDotNet=v0.12.0, OS=Windows 10.0.17763.805 (1809/October2018Update/Redstone5), VM=VMware
Intel Core i7-7700K CPU 4.20GHz (Kaby Lake), 1 CPU, 4 logical and 4 physical cores
[Host] : .NET Framework 4.8 (4.8.4018.0), X86 LegacyJIT
DefaultJob : .NET Framework 4.8 (4.8.4018.0), X86 LegacyJIT
| Method | Count | Mean | Error | StdDev | Rank |
|--------------- |------ |------------:|----------:|----------:|-----:|
| IntArray | 1000 | 260.9 ns | 3.25 ns | 3.04 ns | 1 |
| StringArray | 1000 | 3,372.6 ns | 25.71 ns | 22.79 ns | 4 |
| StringBoxArray | 1000 | 1,504.0 ns | 18.43 ns | 17.24 ns | 2 |
| IntArray | 10000 | 2,985.6 ns | 27.66 ns | 25.87 ns | 3 |
| StringArray | 10000 | 33,456.6 ns | 315.20 ns | 294.84 ns | 6 |
| StringBoxArray | 10000 | 14,966.4 ns | 127.60 ns | 119.36 ns | 5 |
BenchmarkDotNet=v0.12.0, OS=Windows 10.0.17763.805 (1809/October2018Update/Redstone5), VM=VMware
Intel Core i7-7700K CPU 4.20GHz (Kaby Lake), 1 CPU, 4 logical and 4 physical cores
[Host] : .NET Framework 4.8 (4.8.4018.0), X64 RyuJIT
DefaultJob : .NET Framework 4.8 (4.8.4018.0), X64 RyuJIT
| Method | Count | Mean | Error | StdDev | Rank |
|--------------- |------ |------------:|----------:|----------:|-----:|
| IntArray | 1000 | 422.6 ns | 8.46 ns | 11.29 ns | 1 |
| StringArray | 1000 | 1,987.8 ns | 17.91 ns | 15.87 ns | 3 |
| StringBoxArray | 1000 | 1,721.7 ns | 22.09 ns | 19.59 ns | 2 |
| IntArray | 10000 | 4,146.9 ns | 34.87 ns | 32.61 ns | 4 |
| StringArray | 10000 | 19,900.7 ns | 181.12 ns | 169.42 ns | 6 |
| StringBoxArray | 10000 | 17,193.7 ns | 108.32 ns | 101.33 ns | 5 |
using BenchmarkDotNet.Attributes;
using BenchmarkDotNet.Running;
public struct StringBox {
public string Value;
}
[RankColumn]
public class ArraysBenchmark {
private int[] intArray;
private string[] stringArray;
private StringBox[] stringBoxArray;
[Params(1000, 10000)]
public int Count;
[GlobalSetup]
public void Setup() {
intArray = new int[Count];
stringArray = new string[Count];
stringBoxArray = new StringBox[Count];
}
[Benchmark]
public void IntArray() {
var array = intArray;
for (var index = 0; index < array.Length; index++) {
array[index] = 42;
}
}
[Benchmark]
public void StringArray() {
var array = stringArray;
for (var index = 0; index < array.Length; index++) {
array[index] = "42";
}
}
[Benchmark]
public void StringBoxArray() {
var array = stringBoxArray;
for (var index = 0; index < array.Length; index++) {
array[index].Value = "42";
}
}
}
public class Program {
public static void Main(string[] args) {
BenchmarkRunner.Run<ArraysBenchmark>();
}
}
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