67 lines
1.9 KiB
Plaintext
67 lines
1.9 KiB
Plaintext
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=== What is the potential impact?
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We measured at least 4x improvement in the execution time by running the following snippet with https://github.com/dotnet/BenchmarkDotNet[BenchmarkDotNet].
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[source,csharp]
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----
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[Params(1_000_000)]
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public int Iterations { get; set; }
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private readonly UnsealedClass unsealedType = new UnsealedClass();
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private readonly SealedClass sealedType = new SealedClass();
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[Benchmark(Baseline = true)]
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public void UnsealedType()
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{
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for (int i = 0; i < Iterations; i++)
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{
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unsealedType.DoNothing();
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}
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}
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[Benchmark]
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public void SealedType()
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{
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for (int i = 0; i < Iterations; i++)
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{
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sealedType.DoNothing();
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}
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}
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private class BaseType
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{
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public virtual void DoNothing() { }
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}
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private class UnsealedClass : BaseType
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{
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public override void DoNothing() { }
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}
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private sealed class SealedClass : BaseType
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{
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public override void DoNothing() { }
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}
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----
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[options="header"]
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|===
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|Method | Runtime | Iterations | Mean | Error | StdDev | Ratio
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| UnsealedType | .NET 5.0 | 1000000 | 918.7 us | 12.09 us | 10.72 us | 1.00
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| SealedType | .NET 5.0 | 1000000 | 231.2 us | 3.61 us | 3.20 us | 0.25
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| UnsealedType | .NET 6.0 | 1000000 | 867.9 us | 6.38 us | 5.65 us | 1.00
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| SealedType | .NET 6.0 | 1000000 | 218.4 us | 0.71 us | 0.59 us | 0.25
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| UnsealedType | .NET 7.0 | 1000000 | 1,074.5 us | 3.55 us | 3.15 us | 1.00
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| SealedType | .NET 7.0 | 1000000 | 216.1 us | 1.28 us | 1.19 us | 0.20
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|===
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Configuration used for running the benchmarks:
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```
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BenchmarkDotNet=v0.13.5, OS=Windows 10 (10.0.19045.2846/22H2/2022Update)
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12th Gen Intel Core i7-12800H, 1 CPU, 20 logical and 14 physical cores
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.NET SDK=7.0.203
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[Host] : .NET 7.0.5 (7.0.523.17405), X64 RyuJIT AVX2
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.NET 5.0 : .NET 5.0.17 (5.0.1722.21314), X64 RyuJIT AVX2
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.NET 6.0 : .NET 6.0.16 (6.0.1623.17311), X64 RyuJIT AVX2
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.NET 7.0 : .NET 7.0.5 (7.0.523.17405), X64 RyuJIT AVX2
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```
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